ข้อบังคับกรมเจ้าท่า ว่าด้วยหลักเกณฑ์ วิธีการ เงื่อนไข และค่าธรรมเนียมการตรวจ และการออกใบสำคัญรับรองแนวน้ำบรรทุก พ.ศ. 2565

ข้อบังคับกรมเจ้าท่า ว่าด้วยหลักเกณฑ์ วิธีการ เงื่อนไข และค่าธรรมเนียมการตรวจ และการออกใบส้าคัญรับรองแนวน ้าบรรทุก พ.ศ. 2565 โดยที่องค์การทางทะเลระหว่างประเทศ ( International Maritime Organization : IMO ) ได้ยอมรับอนุสัญญาระหว่างประเทศว่าด้วยแนวน ้าบรรทุก ค.ศ. 1966 แก้ไขเพิ่มเติมโดยพิธีสาร ค.ศ. 1988 ( International Convention on Load Lines, 1966 as modified by the Protocol of 1988 relating thereto, as amended ) ซึ่งมีวัตถุประสงค์เพื่อก้าหนดหลักเกณฑ์ เกี่ยวกับสภาพและข้อจ้ากัดในการบรรทุกของเรือซึ่งเดินระหว่างประเทศให้เป็นมาตรฐานเดียวกัน เพื่อให้เกิดการคุ้มครองชีวิตและทรัพย์สินในทะเลอย่างสูงสุด ดังนัน เพื่อให้การปฏิบัติตามพันธกร ณี ระหว่างประเทศ และการบังคับใช้กฎหมายเป็นไปอย่างมีประสิทธิภาพและเกิดประสิทธิผลสูงสุด จึงมีความจ้าเป็นต้องก้าหนดหลักเกณฑ์ วิธีการ เงื่อนไข และค่าธรรมเนียมการตรวจและการออก ใบส้าคัญรับรองแนวน ้าบรรทุก เพื่อปฏิบัติตามอนุสัญญาดังกล่าว อาศัยอ้านาจตามความในมาตรา 163/1 แห่งพระราชบัญญัติการเดินเรือในน่านน ้าไทย พระพุทธศักราช 2456 เพิ่มโดยพระราชบัญญัติการเดินเรือในน่านน้าไทย (ฉบับที่ 17) พ.ศ. 2560 และมาตรา 163 (4) และ (6) แห่งพระราชบัญญัติการเดินเรือในน่านน ้าไทย พระพุทธศักราช 2456 แก้ไขเพิ่มเติมโดยพ ระราชบัญญัติการเดินเรือในน่านน ้าไทย (ฉบับที่ 17) พ.ศ. 2560 เจ้าท่า โดยความเห็นชอบของรัฐมนตรีว่าการกระทรวงคมนาคมออกข้อบังคับกรมเจ้าท่าไว้ ดังต่อไปนี ข้อ 1 ข้อบังคับนี เรียกว่า “ ข้อบังคับกรมเจ้าท่า ว่าด้วยหลักเกณฑ์ วิธีการ เงื่อนไข และค่าธรรมเนียมการตรวจและการออกใบส้าคัญรับรองแนวน ้าบรรทุก พ.ศ. 2565 ” ข้อ 2 ข้อบังคับนีให้ใช้บังคับเมื่อพ้นก้าหนดเก้าสิบวันนับแต่วันประกาศในราชกิจจานุเบกษา เป็นต้นไป ข้อ 3 ให้ยกเลิกกฎข้อบังคับส้าหรับการตรวจเรือ (ฉบับที่ 20) พ.ศ. 2535 ข้อ 4 บรรดากฎข้อบั งคับ ข้อบังคับ ระเบียบ และประกาศในส่วนที่บัญญัติไว้แล้ว ซึ่งขัดหรือแย้งกับข้อบังคับนี ให้ใช้ข้อบังคับนีแทน ข้อ 5 ในข้อบังคับนี “ อนุสัญญา ” หมายถึง อนุสัญญาระหว่างประเทศว่าด้วยแนวน ้าบรรทุก ค.ศ. 1966 แก้ไขเพิ่มเติม โดยพิธีสาร ค.ศ. 1988 ( International Convention on Load Lines, 1966 as modified by the Protocol of 1988 relating thereto, as amended ) “ ความยาว ” หมายถึง ความยาวร้อยละ 96 ของความยาวทั งหมดบนเส้นแนวน ้าที่ร้อยละ 85 ของความลึกต่้าสุดเหนือกระดูกงูโดยวัดจากตอนบนข องกระดูกงูหรือวัดจากความยาวจากหน้าของทวนหัว ้ หนา 14 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

ถึงแกนหางเสือที่เป็นเส้นแนวน ้านัน สุดแต่ว่าความยาวใดมากกว่า กรณีที่แนวแผ่นสะเต็มโค้งเว้าเหนือ เส้นแนวน ้าที่ร้อยละ 85 ของความลึกต่้าสุด ส่วนที่ใช้อ้างอิงทางหน้าแผ่นสะเต็ม ให้วัดจากแนวเส้นตังฉาก ของแนวน ้าที่ ขอบหลังส่วนหน้าของแผ่นสะเต็ม (เหนือแนวน ้านั น) ถ้าเรือออกแบบให้กระดูกงู มีความลาดเอียงเส้นแนวน ้าที่ใช้วัดความยาวจะต้องใช้เส้นขนานกับเส้นแนวน ้าที่ออกแบบไว้ “ เรือใหม่ ” หมายถึง เรือที่วางกระดูกงูหรืออยู่ในขันตอนต่อสร้างที่คล้ายคลึงกัน ตังแต่วันที่ 30 มีนาคม พ.ศ. 2536 เป็นต้นไป “ เรือที่มีอยู่เดิม ” หมายถึง เรือที่มิใช่เรือใหม่ “ เรือ ” หมายถึง เรือที่เดินทะเลระหว่างประเทศ “ ใบส้าคัญรับรอง ” หมายถึง ใบส้าคัญรับรองแนวน ้าบรรทุกระหว่างประเทศ ที่ออกให้แก่เรือทุกล้า ที่ได้รับการตรวจและท้าเครื่องหมายแนวน ้า บรรทุกบนเรือตามข้อบังคับนีแล้ว “ ใบส้าคัญรับรองการยกเว้น ” หมายถึง ใบส้าคัญรับรองการยกเว้นแนวน ้าบรรทุกระหว่างประเทศ ที่ออกให้แก่เรือล้าใดล้าหนึ่งที่ได้รับการยกเว้นตามข้อ 9 ของข้อบังคับนี “ องค์การ ” หมายถึง องค์การทางทะเลระหว่างประเทศ ( International Maritime Organization : IMO ) “ วันครบรอบปี ( Anniversary date )” หมายถึง วันและเดือนในแต่ละปีซึ่งตรงกับวันที่ หมดอายุของใบส้าคัญรับรอง ข้อ 6 ข้อบังคับนีใช้บังคับกับเรือ ดังต่อไปนี ( 1 ) เรือใหม่ ให้ปฏิบัติตาม Annex I ภายใต้ภาคผนวก 1 ที่แนบท้ายข้อบังคับนี กรณีเรือที่มีอยู่เดิมที่ยังไม่สามารถปฏิบัติตาม Annex I ภายใต้ภาคผนวก 1 ได้ทั งหมดหรือ บางส่วน ให้เรือดังกล่าวปฏิบัติตามข้อก้าหนดซึ่งมีมาตรฐานต่้ากว่า ซึ่งก้าหนดให้ใช้บังคับกับเรือที่เดิน ทะเลระหว่างประเทศ ก่อนอนุสัญญานี มีผลใช้บัง คับ ทังนี ไม่ว่ากรณีใดต้องไม่ก้าหนดเพิ่มระยะกราบพ้นน ้าของเรือเหล่านี เพื่อให้ได้ประโยชน์ จากการลดระยะกราบพ้นน้าจากที่ได้ก้าหนดไว้เดิมที่อาจมีขึน (2) เรือใหม่และเรือที่มีอยู่เดิม ให้ปฏิบัติตาม Annex II ภายใต้ภาคผนวก 1 ที่แนบท้าย ข้อบังคับนี ข้ อ 7 ข้อบังคับนีไม่ใช้บังคับกับเรือ ดังต่อไปนี (1) เรือรบ (2) เรือใหม่ที่มีความยาวน้อยกว่า 24 เมตร (79 ฟุต) (3) เรือที่มีอยู่เดิม ที่มีขนาดต่้ากว่า 150 ตันกรอสส์ (4) เรือส้าราญและกีฬาที่มิได้ท้าการค้า (5) เรือประมง ้ หนา 15 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

ข้อ 8 ข้อบังคับนีไม่ใช้บังคับกับ เรือซึ่งเดินอยู่เฉพาะในเขตที่ก้าหนดไว้ ดังต่อไปนี (1) ทะเลสาบเกรทเลคส์ในทวีปอเมริกาเหนือ และแม่น ้าเซ็นต์ลอเรนซ์ไปทางทิศตะวันออก จนถึงเส้นรัมน์ไลน์ ซึ่งลากจากแคปเดส์โรเซียถึงเวสพอยท์ เกาะแอนติคอสติ และทางทิศเหนือของเกาะ แอนติคอสติ เส้นเมอริเดียนลองติจู ด 63° ตะวันตก (2) ทะเลแคสเบียน (3) แม่น ้าเพลท แม่น ้าปารานา และแม่น ้าอุรุกวัย ไปทางทิศตะวันออกจนถึงเส้นรัมไลน์ ที่ลากระหว่างปุนตา ราซา (กาโบ ซาน อันโตนิโอ) ( Punta Rasa ( Cabo San Antonio )) ของ ประเทศอาร์เจนตินา และปุนตา เดล เอสเต ( Punta del Este ) ของประเทศอุรุกวัย ข้อ 9 ให้เรือดังต่อไปนี ได้รับยกเว้นไม่ต้องปฏิบัติตามข้อก้าหนดของอนุสัญญา (1) เรือที่เดินระหว่างเมืองท่าใกล้เคียงระหว่างสองประเทศหรือมากกว่านัน ขณะที่เรือเดินอยู่ ในเส้นทางดังกล่าว หากเมืองท่านันเห็นว่าลักษณะก้าบังตามธรรมชา ติหรือสภาพการเดินเรือระหว่าง ท่าเรือนั น ไม่เหมาะสมที่จะน้าอนุสัญญามาใช้บังคับ (2) เรือในลักษณะที่ไม่เคยมีมาก่อน ( ship which embodies features of a novel kind ) หากพบว่าการปฏิบัติตามอนุสัญญาจะก่อให้เกิดอุปสรรคต่อการวิจัยและการพัฒนาเรือนั น เรือข้างต้ นจะต้องปฏิบัติตามข้อก้าหนดว่าด้วยความปลอดภัยที่เพียงพอส้าหรับการใช้งาน ตามวัตถุประสงค์ที่ก้าหนด และเพื่อให้เกิดความปลอดภัยในการเดินเรือ รวมถึงเป็นที่ยอมรับ ของประเทศที่เรือนั นจะเดินทางไป (3) เรือซึ่งปกติไม่ได้เดินทะเลระหว่างประเทศ แต่มีเหตุจ้าเป็นต้องเดิน ทะเลระหว่างประเทศ เพียงเที่ยวเดียว ( Single voyage ) ให้ได้รับการยกเว้นข้อก้าหนดของข้อบังคับนีได้ หากมีมาตรการ ความปลอดภัยเหมาะสมและเพียงพอส้าหรับการเดินเรือนัน ให้อธิบดีกรมเจ้าท่าก้าหนดหลักเกณฑ์ในการยกเว้นข้อก้าหนดตาม (1) (2) และ (3) ข้อ 1 0 ให้อธิบดีกรมเจ้าท่ามีหน้าที่รับผิดชอบในการก้ากับดูแลการอนุญาตและการขอยกเว้น ไม่ต้องปฏิบัติตามข้อก้าหนดของข้อ 9 และด้าเนินการแจ้งรายละเอียดและเหตุผลในการยกเว้น ของข้อ 9 (1) และ (2) ไปยังองค์การ เพื่อที่จะได้แจ้งข้อมูลนีไปยังรัฐภาคีอื่น ข้อ 11 เรือซึ่งไ ม่อยู่ในบังคับของอนุสัญญานีเมื่อเริ่มออกเดินเรือ หากจ้าเป็นต้องออกนอก เส้นทางเดินเรือที่ก้าหนดไว้เดิม เนื่องจากอากาศแปรปรวนหรือเหตุสุดวิสัยอื่น ไม่ต้องอยู่ใต้บังคับ ของอนุสัญญา ในการบังคับใช้อนุสัญญานี ต้องพิจารณาถึงผลกระทบของการเปลี่ยนเส้นทางหรือความล่ำช้า ของเรือ อันเนื่องมาจากอากาศแปรปรวนหรือเหตุสุดวิสัยอื่น ข้อ 1 2 อธิบดีกรมเจ้าท่าอาจอนุญาตให้ใช้สิ่งใช้แทนกันได้ ( Equivalents ) ในการติดตังหรือ ใช้ส่วนประกอบ วัสดุ เครื่องมือ เครื่องใช้ หรือสิ่งอื่น ๆ ที่ต่างไปจากข้อก้าหนดของอนุสัญญา ้ หนา 16 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

หากปรากฏผลการทดลองหรือผลการทดสอบว่าส่วนประกอบ วัสดุ เครื่องมือ เครื่องใช้ หรือสิ่งอื่น ๆ นัน มีประสิทธิภาพเทียบเท่ากับข้อก้าหนดของอนุสัญญา ให้อธิบดีกรมเจ้าท่าติดต่อและรายงานผลการทดลอง หรือผลการทดสอบนันไปยังองค์การ เพื่อที่จะได้แจ้งข้อมูลนีไปยังรั ฐภาคีอื่น ข้อ 1 3 เรือที่เข้ารับการซ่อมท้า ( Repairs ) ดัดแปลง ( Alterations ) แก้ไขในส่วนที่ส้าคัญ ( Modifications ) และติดตังเครื่องประกอบของเรือ อย่างน้อยที่สุดต้องปฏิบัติตามข้อก้าหนดที่ใช้บังคับ กับเรือก่อนที่จะซ่อมท้า ดัดแปลง แก้ไขในส่วนที่ส้าคัญ และติ ดตังเครื่องประกอบของเรือ และต้อง ปฏิบัติตามข้อก้าหนดใหม่ของเรือที่มีอยู่เดิมซึ่งไม่น้อยกว่าที่ปฏิบัติอยู่เดิม ภายใต้บังคับวรรคหนึ่ง การซ่อมท้า การดัดแปลง การแก้ไขในส่วนที่ส้าคัญ และการติดตัง เครื่องประกอบที่เกี่ยวข้อง ต้องเป็นไปตามข้อก้าหนดส้าหรับเรือใหม่ ตามที่เจ้าพนักงานตรวจเรือ เห็นสมควร ข้อ 14 เรือจะต้องปฏิบัติตามข้อก้าหนดของอนุสัญญาและ Annex II ภายใต้ภาคผนวก 1 เรื่อง เขตพืนที่และช่วงฤดูกาล ( Zones Areas and Seasonal Periods ) ที่แนบท้ายข้อบังคับนี หากท่าเรืออยู่บริเวณ 2 เส้นแบ่งเขต หรื อบริเวณ 2 พืนที่ ให้ถือว่าท่าเรือนันอยู่ในเขต หรือพืนที่ที่เรือเดินทางมาหรือก้าลังจะเดินทางเข้าไป แล้วแต่กรณี ข้อ 1 5 เมื่อเรืออยู่ในน ้าจืดที่มีค่าความหนาแน่นเท่ากับ 1 ตันต่อลูกบาศก์เมตร ให้บรรทุก ได้ไม่เกินเส้นแนวน ้าบรรทุกที่ก้าหนดไว้ส้าหรับน ้าจืดในใบส้าคัญรับรอง ส่วนกรณีที่ค่าความหนาแน่นของน ้า มิใช่ 1 ตันต่อลูกบาศก์เมตร ให้เผื่อไว้เป็นสัดส่วนหรือผลต่างระหว่าง 1.025 กับความหนาแน่น ของน ้านั น เรือที่ออกจากท่าเรือที่อยู่ในแม่น ้าหรือน่านน ้าภายใน ใ ห้บรรทุกได้ลึกมากกว่าหรือเท่ากับ น ้าหนักของเชื อเพลิงและวัสดุอื่น ๆ ที่จ้าเป็นและใช้ไประหว่างการเดินทางจากจุดออกเรือจนถึงทะเล ข้อ 16 การตรวจเรือและการท้าเครื่องหมายแนวน ้าบรรทุกบนเรือ เพื่อการบังคับใช้ อนุสัญญานี หรือการตรวจเพื่อการยกเว้นต้องกระท้าโดยเจ้าพนักงำนตรวจเรือ อธิบดีกรมเจ้าท่าอาจมอบอ้านาจให้สถาบันการตรวจเรือที่ได้รับการยอมรับ ท้าการตรวจเรือ และท้าเครื่องหมายแนวน ้าบรรทุกบนเรือ เพื่อบังคับใช้อนุสัญญานี โดยการมอบอ้านาจนันต้องมีการ ก้ากับดูแลให้แน่ใจถึงความสมบูรณ์และประสิทธิภาพของการตรวจเรือและการท้าเครื่องห มายแนวน ้า บรรทุกบนเรือในทุกกรณี ข้อ 1 7 การตรวจเรือครังแรก การตรวจเรือเพื่อออกใบส้าคัญรับรองใหม่ และการตรวจเรือ ประจ้าปี ให้ด้าเนินการ ดังนี ( 1 ) เรือต้องได้รับการตรวจเรือตามข้อก้าหนด ดังต่อไปนี ้ หนา 17 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

( 1.1 ) การตรวจเรือก่อนน้าเรือออกใช้งานซึ่งรวมถึงการตรวจโครงสร้ำงของเรือและ อุปกรณ์ต่าง ๆ ทังหมดตามที่อนุสัญญาก้าหนด การตรวจเรือต้องท้าให้แน่ใจได้ว่าการจัดพืนที่ในเรือ วัสดุที่ใช้ และขนาดชิ นส่วนโครงสร้างของเรือเป็นไปตามข้อก้าหนดของอนุสัญญานี อย่างครบถ้วน ( 1.2 ) การตรวจเรือเพื่อออกใบส้าคัญรับรองใหม่ตามรอบเวลาที่เจ้าพ นักงานตรวจเรือ ก้าหนดแต่ต้องไม่เกิน 5 ปี เว้นแต่เป็นการด้าเนินการตามข้อ 26 (2) (5) (6) และ (7) ซึ่งเป็น การท้าให้แน่ใจได้ว่าโครงสร้าง อุปกรณ์ การจัดพืนที่ในเรือ วัสดุที่ใช้ และขนาดชินส่วนโครงสร้าง ของเรือเป็นไปตามข้อก้าหนดของอนุสัญญาอย่างครบถ้วน ( 1.3 ) การตรวจเรือประจ้าปี ให้กระท้าภายในระยะเวลา 3 เดือน ก่อนหรือหลัง วันครบรอบปีของใบส้าคัญรับรอง เพี่อท้าให้แน่ใจได้ว่า ( 1.3.1 ) มิได้มีการดัดแปลงตัวเรือหรือซูเปอร์สตรัคเจอร์ ( Superstructure ) ซึ่งอาจ กระทบถึงการค้านวณเพื่อก้าหนดต้าแหน่งแนวน ้าบรรทุก ( 1.3.2 ) ข้อต่อ ( Fitting ) และเครื่องใช้ ( Appliances ) ส้าหรับการป้องกันช่องเปิดต่าง ๆ ราวกันตก ช่องระบายข้างเรือและช่องทางสู่ห้องลูกเรือ ได้มีการบ้ารุงรักษาให้อยู่ในสภาพที่ใช้งานได้ อย่างมีประสิทธิผล ( 1.3.3 ) เครื่องหมายระยะกราบพ้นน้าถูกแสดงไว้อย่าง ถูกต้องและถาวร ( 1.3.4 ) มีการจัดเตรียมข้อมูลไว้ตามข้อก้าหนดในข้อบังคับ 10 ของ Annex I ภายใต้ภาคผนวก 1 ที่แนบท้ายข้อบังคับนี ( 2 ) การตรวจเรือประจ้าปีตามที่อ้างถึงใน (1) (1.3) ต้องสลักหลังไว้ในใบส้าคัญรับรองหรือ ใบส้าคัญรับรองการยกเว้นที่ออกให้กับเรือที่ได้รับการยกเว้นตามข้อ 9 (2) ข้อ 18 ห้ามมิให้เปลี่ยนแปลงโครงสร้าง อุปกรณ์ การจัดพืนที่ในเรือ วัสดุหรือรายการขนาด ของโครงสร้างที่ผ่านการตรวจแล้วก่อนได้รับอนุญาตจากเจ้าพนักงานตรวจเรือ ข้อ 19 ห้ามมิให้เรือล้าใดออกทะเลเพื่อเดินเรือระหว่างประเทศภายหลังวันที่อนุสัญญานี มีผลใช้บังคับ เว้นแต่จ ะได้ผ่านการตรวจเรือ การท้าเครื่องหมายแนวน ้าบรรทุกบนเรือ และมีใบส้าคัญรับรอง หรือใบส้าคัญรับรองการยกเว้นตามที่ข้อบังคับนีก้าหนด แล้วแต่กรณี ข้อ 2 0 การก้าหนดแนวน ้าบรรทุกของเรือตามข้อบังคับนี ให้เป็นไปตามภาคผนวก 1 ที่แนบท้ายข้อบังคับนี เจ้าพนักงานตรวจเรื ออาจก้าหนดระยะกราบพ้นน ้ามากกว่าระยะกราบพ้นน ้าที่ค้านวณได้ ในวรร คหนึ่ง ข้อ 2 1 กรณีเรือไทยตามข้อบังคับนีเกิดอุบัติเหตุ หน่วยงานที่เกี่ยวข้องจะต้องด้าเนินการ สอบสวนอุบัติเหตุดังกล่าว โดยการสอบสวนนั นมีวัตถุประสงค์เพื่อให้ทราบถึงสาเหตุของการเกิดอุบัติเหตุ และป้อ งกันไม่ให้เหตุดังกล่าวเกิดขึ นอีก ้ หนา 18 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

ข้อ 22 เจ้าของเรือ หรือตัวแทนเจ้าของเรือ ที่มีความประสงค์จะให้เจ้าพนักงานตรวจเรือ ด้าเนินการตรวจเรือและออกใบส้าคัญรับรองหรือใบส้าคัญรับรองการยกเว้น ต้องยื่นค้าร้องตามแบบ ก. 5 ล่วงหน้าก่อนวันนัดหมายตรวจเรือไม่น้อยกว่า 3 วัน ส้าหรับการตรวจเรือภายในประเทศ และ ไม่น้อยกว่า 21 วัน ส้าหรับการตรวจเรือในต่างประเทศ เมื่อพบว่าเรือได้ปฏิบัติตามข้อบังคับนี ให้เจ้าพนักงานตรวจเรือด้าเนินการออกใบส้าคัญรับรองหรือใบส้าคัญรับรองการยกเว้นภายใน 3 วันท้าการ นับตังแต่เจ้าพนักงานตรวจเรือแ ล้วเสร็จ ข้อ 2 3 การออกใบส้าคัญรับรอง ให้ด้าเนินการ ดังนี (1) ให้ออกใบส้าคัญรับรองแก่เรือทุกล้าที่ได้รับการตรวจเรือและท้าเครื่องหมายแนวน ้าบรรทุกบนเรือ ตามข้อบังคับนีแล้ว (2) ให้ออกใบส้าคัญรับรองการยกเว้นแก่เรือล้าใดล้าหนึ่งที่ได้รับการยกเว้นตามข้อ 9 (2) หรื อ (3) กรณีใบส้าคัญรับรองตาม (1) ที่ออกโดยสถาบันการตรวจเรือที่ได้รับการยอมรับ ให้อธิบดี กรมเจ้าท่าเป็นผู้รับผิดชอบในการก้ากับดูแลการออกใบส้าคัญดังกล่าว ข้อ 24 การออกใบส้าคัญรับรองให้เรือของรัฐภาคีอื่น ให้ด้าเนินการ ดังต่อไปนี ( 1 ) กรณีที่ได้รับการร้องขอจากรัฐภาคีอื่น เมื่อเจ้าพนักงานตรวจเรือได้ท้าการตรวจเรือและ เห็นว่าได้มีการปฏิบัติตามความในอนุสัญญาแล้ว ให้ออกใบส้าคัญรับรองหรือมอบอ้านาจให้ผู้อื่น ออกใบส้าคัญรับรองแนวน ้าบรรทุกระหว่างประเทศ ให้แก่เรือดังกล่าวได้ตามข้อบังคับนี ( 2 ) ให้อ ธิบดีกรมเจ้าท่าส่งส้าเนาใบส้าคัญรับรอง ส้าเนารายงานการตรวจเรือที่ใช้ค้านวณ ระยะกราบพ้นน้าและส้าเนาการค้านวณ ไปยังรัฐภาคีอื่นที่ร้องขอมาโดยเร็วที่สุด ( 3 ) ใบส้าคัญรับรองที่ออกให้เพื่อการนี ต้องมีค้าแถลงว่าออกให้ตามค้าร้องขอของรัฐภาคีอื่น ที่เรือล้านันชักธงอยู่ หรื อจะชักธงในเวลาต่อไป และมีผลใช้บังคับและได้รับการยอมรับเช่นเดียวกับ ใบส้าคัญรับรองซึ่งออกให้ตามข้อ 23 ( 4 ) ห้ามมิให้ออกใบส้าคัญรับรองให้กับเรือที่ชักธงของประเทศที่มิได้เป็นภาคีของอนุสัญญา ข้อ 25 แบบใบส้าคัญรับรอง ให้เป็นไปตามแบบที่ก้าหนดในภาคผนวก 2 ที่แนบท้ำย ข้อบังคับนีหรือตามที่อธิบดีกรมเจ้าท่าประกาศก้าหนด ข้อ 2 6 อายุและการมีผลของใบส้าคัญรับรอง ( Duration and Validity of Certificate ) ให้เป็นไป ดังนี (1) ใบส้าคัญรับรองต้องออกให้เป็นระยะเวลาตามที่เจ้าพนักงานตรวจเรือระบุ ซึ่งต้องไม่เกิน 5 ปี (2) การต รวจเรือเพื่อออกใบส้าคัญรับรองใหม่ให้ก้าหนดอายุใบส้าคัญรับรอง ดังนี ้ หนา 19 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

( 2.1 ) หากการตรวจเรือเพื่อออกใบส้าคัญรับรองใหม่เสร็จสิ นก่อนวันหมดอายุของ ใบส้าคัญรับรองเดิมไม่เกิน 3 เดือน ให้ใบส้าคัญรับรองใหม่มีผลใช้ได้ตังแต่วันที่ตรวจเรือเพื่อออก ใบส้าคัญรับรองใหม่เสร็จสิ นและให้ก้าหนดอายุไม่เกิน 5 ปี นับจากวันหมดอายุของใบส้าคัญรับรองเดิม ( 2.2 ) หากการตรวจเรือเพื่อออกใบส้าคัญรับรองใหม่เสร็จสินหลังจากวันหมดอายุของ ใบส้าคัญรับรองเดิม ให้ใบส้าคัญรับรองใหม่มีผลใช้ได้ตังแต่วันที่เสร็จสินการตรวจเรือเพื่อออกใบส้าคัญ รับรองใหม่และ ให้ก้าหนดอายุไม่เกิน 5 ปี นับจากวันหมดอายุของใบส้าคัญรับรองเดิม ( 2.3 ) หากการตรวจเรือเพื่อออกใบส้าคัญรับรองใหม่เสร็จสิ นก่อนวันหมดอายุของ ใบส้าคัญรับรองเดิมเกินกว่า 3 เดือน ให้ใบส้าคัญรับรองใหม่มีผลใช้ได้ตังแต่วันที่เสร็จสินการตรวจเรือ เพื่อออกใบส้าคัญรับร องใหม่และให้ก้าหนดอายุไม่เกิน 5 ปี นับจากวันที่เสร็จสิ นการตรวจเรือเพื่อออก ใบส้าคัญรับรองใหม่ ( 3 ) กรณีใบส้าคัญรับรองที่ออกให้โดยมีอายุน้อยกว่า 5 ปี เจ้าพนักงานตรวจเรือสามารถ ขยายอายุของใบส้าคัญรับรองออกไปพ้นวันหมดอายุไปจนถึงช่วงอายุสูงสุดที่ก้าหนดใน (1) โดยมี ข้อแม้ว่าได้ท้าการตรวจเรือประจ้าปีตามข้อก้าหนดในข้อ 17 ส้าหรับกรณีที่ออกใบส้าคัญรับรอง ให้มีอายุไม่เกิน 5 ปี โดยค้านึงถึงสภาพความปลอดภัยส้าหรับการใช้เรือ ( 4 ) กรณีที่การตรวจเรือเพื่อออกใบส้าคัญรับรองใหม่ตามข้อ 17 (1) (1.2) สินลงแต่ไม่ สามารถออกใบส้าคัญรับรองใหม่ให้กับเรือได้ก่อนวันหมดอายุของใบส้าคัญรับรองเดิม เจ้าพนักงานตรวจเรือ สามารถขยายอายุของใบส้าคัญรับรองเดิมต่อไปได้อีกไม่เกิน 5 เดือน โดยให้สลักหลังการขยายอายุนีไว้ ในใบส้าคัญรับรองและจะกระท้าให้ได้ในเฉพาะกรณีที่ไม่มีการเปลี่ยนแปลงโ ครงสร้าง อุปกรณ์การจัดวาง วัสดุหรือขนาดชิ นส่วนโครงสร้างที่กระทบต่อระยะกราบพ้นน้าของเรือ ( 5 ) กรณีใบส้าคัญรับรองของเรือล้าใดหมดอายุลง ในขณะที่เรือนั นไม่อยู่ในเมืองท่าที่สามารถ กระท้าการตรวจเรือได้ เจ้าพนักงานตรวจเรือสามารถขยายอายุใบส้าคัญรับรองออกไปได้แต่ การขยายอายุนี ต้องกระท้าเพื่อวัตถุประสงค์ในการอนุญาตให้เรือเดินทางไปยังเมืองท่าที่จะท้าการตรวจเรือได้ และ เป็นกรณีที่ปรากฏว่าเหมาะสมและสมเหตุผลที่จะด้าเนินการเช่นนัน โดยมิให้ขยายอายุใบส้าคัญรับรอง เกิน 3 เดือน และเมื่อเรือนันเดินทางถึงเมืองท่าที่จะท้าการ ตรวจเรือได้แล้ว ห้ามมิให้อาศัยประโยชน์ จากการขยายอายุใบส้าคัญรับรองนีออกเดินทางจากเมืองท่านันโดยไม่มีใบส้าคัญรับรองใหม่ เมื่อการ ตรวจเรือเพื่อออกใบส้าคัญรับรองใหม่เสร็จสินแล้วให้ใบส้าคัญรับรองใหม่มีอายุไม่เกิน 5 ปี นับจาก วันหมดอายุของใบส้าคัญรับรองเดิมก่ อนมีการขยายอายุ ( 6 ) กรณีใบส้าคัญรับรองที่ออกให้แก่เรือที่เดินทางระยะสัน ซึ่งไม่เคยได้รับการขยายอายุ ใบส้าคัญรับรองตามข้อก้าหนดข้างต้น เจ้าพนักงานตรวจเรือสามารถขยายอายุใบส้าคัญรับรองออกไปได้ ไม่เกิน 1 เดือน นับจากวันหมดอายุที่ระบุในใบส้าคัญรับรอง เมื่อการตร วจเรือเพื่อออกใบส้าคัญ รับรองใหม่เสร็จสินแล้ว ให้ใบส้าคัญรับรองใหม่มีอายุไม่เกิน 5 ปี นับจากวันหมดอายุของใบส้าคัญ รับรองเดิมก่อนมีการขยายอายุ ้ หนา 20 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

( 7 ) ในสถานการณ์พิเศษ ( Special circumstances ) ที่เจ้าพนักงานตรวจเรือเห็นว่า ไม่จ้าเป็นต้องออกใบส้าคัญรับรองใหม่โดยใช้วันหมดอายุของใบส้าคัญรับรองเดิมตามที่ก้าหนดไว้ใน (2) (5) และ (6) ให้ใบส้าคัญรับรองใหม่มีอายุไม่เกิน 5 ปี นับจากวันเสร็จสินการตรวจเรือเพื่อออก ใบส้าคัญรับรองใหม่ ( 8 ) กรณีการตรวจเรือประจ้าปีเสร็จสิ นก่อนช่วงเวลาที่ร ะบุไว้ในข้อ 17 ให้ด้าเนินการ ดังนี ( 8.1 ) แก้ไขวันครบรอบปีที่แสดงไว้ในใบส้าคัญรับรองด้วยการสลักหลังลงวันที่ซึ่งต้อง ไม่เกิน 3 เดือน หลังจากวันที่เสร็จสิ นการตรวจเรือ ( 8.2 ) การตรวจเรือประจ้าปีในครังต่อ ๆ ไป ต้องเสร็จสินภายในช่วงเวลาที่ก้าหนดไว้ ในข้อ 17 โดยใช้วันครบรอบปีที่ก้าหนดขึ นใหม่ ( 8.3 ) หากมีการตรวจเรือประจ้าปีอย่างน้อย 1 ครัง ที่ท้าให้ช่วงห่างระหว่างการตรวจเรือ ไม่เกินกว่าที่ก้าหนดไว้ในข้อ 17 ให้สามารถคงวันหมดอายุไว้เช่นเดิมได้ ( 9 ) ใบส้าคัญรับรองให้สิ นผลในกรณี ดังต่อไปนี ( 9.1 ) มีกำรเปลี่ยนแปลงวัสดุกับตัวเรือหรือซุปเปอร์สตรัคเจอร์ของเรือซึ่งท้าให้จ้าเป็นต้อง ก้าหนดระยะกราบพ้นน้าเพิ่มขึ น ( 9.2 ) ข้อต่อและเครื่องใช้ที่กล่าวถึงในข้อ 17 (1) (1.3) มิได้มีการบ้ารุงรักษาให้อยู่ใน สภาพที่ใช้งานได้อย่างมีประสิทธิผล ( 9.3 ) ไม่มีการสลักหลังใบส้าคั ญรับรองเพื่อแสดงว่าเรือได้ผ่านการตรวจเรือตามที่บัญญัติ ไว้ในข้อ 17 (1) (1.3) ( 9.4 ) ความแข็งแรงของโครงสร้างเรือลดลงจนถึงขนาดที่ท้าให้เรือไม่ปลอดภัย ( 10 ) กรณีใบส้าคัญรับรองการยกเว้น ให้ด้าเนินการ ดังนี ( 10.1 ) ช่วงเวลาของใบส้าคัญรับรองการยกเว้น ที่เจ้าพนักงานตรวจเรือออกให้กับเรือ ที่ได้รับการยกเว้นตามข้อ 9 (2) ต้องไม่เกิน 5 ปี โดยค้านึงถึงสภาพความปลอดภัยส้าหรับการใช้เรือ ใบส้าคัญรับรองดังกล่าวต้องอยู่ภายใต้กระบวนการออกใบส้าคัญรับรองใหม่ การสลักหลัง การขยายอายุ และการยกเลิก เช่นเดียวกับข้อ ก้าหนดส้าหรับใบส้าหรับรับรองตามข้อ 26 ( 10.2 ) ช่วงเวลาของใบส้าคัญรับรองการยกเว้น ที่ออกให้กับเรือที่ได้รับการยกเว้น ตามข้อ 9 (3) ต้องจ้ากัดไว้เฉพาะการเดินทางเพียงเที่ยวเดียวตามใบส้าคัญรับรองการยกเว้นที่ออกไว้ ( 11 ) ใบส้าคัญรับรองที่ออกให้ภายใต้ข้อบังคับนี ใ ห้สิ นสุดลงเมื่อเรือเปลี่ยนไปชักธงของรัฐอื่น ข้อ 2 7 อัตราค่าธรรมเนียมส้าหรับการตรวจเรือเพื่อออกหรือสลักหลังใบส้าคัญรับรองหรือ ใบส้าคัญรับรองการยกเว้น ให้เป็นไปตามภาคผนวก 3 ที่แนบท้ายข้อบังคับนี ข้อ 28 ใบส้าคัญรับรองและใบส้าคัญรับรองการยกเว้นซึ่งออกให้ก่อนข้อ บังคับฉบับนี มีผลใช้บังคับและยังไม่หมดอายุ ให้สามารถใช้ได้ต่อไปจนครบอายุของใบส้าคัญรับรองนัน ้ หนา 21 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

ข้อ 2 9 ให้อธิบดีกรมเจ้าท่าเป็นผู้รักษาการตามข้อบังคับนี และมีอ้านาจออกประกาศ เพื่อก้าหนดรายละเอียดการปฏิบัติให้เป็นไปตามข้อบังคับนี ประกาศ ณ วันที่ 15 พฤศจิกายน พ.ศ. 25 6 5 สรพงศ์ ไพฑูรย์พงษ์ รองปลัดกระทรวงคมนาคม รักษาราชการแทน อธิบดีกรมเจ้าท่า ้ หนา 22 ่ เลม 140 ตอนพิเศษ 6 ง ราชกิจจานุเบกษา 10 มกราคม 2566

ภาคผนวก 1 ข้อก้าหนดในผนวกบีของอนุสัญญาระหว่างประเทศว่าด้วยแนวน ้าบรรทุก ค . ศ . 1966 แก้ไขเพิ่มเติมโดยพิธีสาร ค . ศ . 1988 ( Requirements of Annex B to the Convention as modified by the Protocol of 1988 relating thereto )

• 1 - PROTOCOL OF 1988 RELATING TO THE INTERNATIONAL CONVENTION ON LOAD LINES, 1966 ANNEX I REGULATIONS FOR DETERMINING LOAD LINES CHAPTER I GENERAL The regulations assume that the nature and stowage of the cargo, ballast, etc . , are such as to secure sufficient stability of the ship and the avoidance of excessive structural stress . The regulations also assume that where there are international requirements relating to stability or subdivision, these requirements have been complied with . Regulation 1 Strength and intact stability of ships ( 1 ) The Administration shall satisfy itself that the general structural strength of the ship is adequate for the draught corresponding to the freeboard assigned . ( 2 ) A ship which is designed, constructed and maintained in compliance with the appr opriate requirements of an organization, including a classification society, which is recognized by the Administration or with applicable national standards of the Administration in accordance with the provisions of regulation 2 - 1, may be considered to pro vide an acceptable level of strength . The above provisions shall apply to all structures, equipment and fittings covered by this annex for which standards for strength and construction are not expressly provided . ( 3 ) Compliance ( a ) Ships constructed before 1 July 2010 shall comply with an intact stability standard acceptable to the Administration . ( b ) Ships constructed on or after 1 July 2010 shall, as a minimum, comply with the requirements of part A of the 2008 IS Code . Regulation 2 Application ( 1 ) Ship s with mechanical means of propulsion or lighters, barges or other ships without independent means of propulsion, shall be assigned freeboards in accordance with the provisions of regulations 1 to 40, inclusive .

• 2 - ( 2 ) Ships carrying timber deck cargoes may b e assigned, in addition to the freeboards prescribed in paragraph ( 1 ) , timber freeboards in accordance with the provisions of regulations 41 to 45 . ( 3 ) Ships designed to carry sail, whether as the sole means of propulsion or as a supplementary means, and t ugs, shall be assigned freeboards in accordance with the provisions of regulations 1 to 40, inclusive . Additional freeboard may be required as determined by the Administration . ( 4 ) Ships of wood or of composite construction, or of other materials the use of which the Administration has approved, or ships whose constructional features are such as to render the application of the provisions of this Annex unreasonable or impracticable, shall be assigned freeboards as determined by the Administration . ( 5 ) Regu lations 10 to 26, inclusive, shall apply to every ship to which a minimum freeboard is assigned . Relaxations from these requirements may be granted to a ship to which a greater than minimum freeboard is assigned, on condition that the Administration is sat isfied with the safety conditions provided . ( 6 ) Where the assigned summer freeboard is increased such that the resulting draught is not more than that corresponding to a minimum summer freeboard for the same ship, but with an assumed freeboard deck located a distance below the actual freeboard deck at least equal to the standard superstructure height, the conditions of assignment in accordance with regulations 12, 14 - 1 through 20, 23, 24 and 25, as applicable, to the actual freeboard deck may be as required for a superstructure deck . ( 7 ) Unless expressly provided otherwise, the regulations of this Annex shall apply to ships the keels of which are laid or which are at a similar stage of construction on or after 1 January 2005 . ( 8 ) For ships the keels of which are laid or which are at a similar stage of construction before 1 January 2005, the Administration shall ensure that the requirements which are applicable under the International Convention on Load Lines, 1966, as modified by the Protocol of 1988 relating thereto, adopted by the International Conference on Harmonized System of Survey and Certification, 1988, are complied with . ( 9 ) High - speed craft which comply with the requirements of the International Code of Safety for High - Speed Craft, 2000 ( 2000 HSC Co de ) , adopted by the Maritime Safety Committee of the Organization by resolution MSC . 97 ( 73 ) and which have been surveyed and certified as provided in the Code shall be deemed to have complied with the requirements of this Annex . The certificates and permits issued under the 2000 HSC Code shall have the same force and the same recognition as the certificates issued under this Annex .

• 3 - Regulation 2 - 1 Authorization of recognized organizations The Administration shall authorize organizations, including classification societies, referred to in article 13 of the Convention and regulation 1 ( 2 ) in accordance with the provisions of the present Convention and with the Code for Recognized Organizations ( RO Code ) , consisting of part 1 and part 2 ( the provisions of which shall be treated as mandatory ) and part 3 ( the provisions of which shall be treated as recommendatory ) , as adopted by the Organization by resolution MSC . 349 ( 92 ) , as may be amended by the Organization, provided that : ( a ) amendments to part 1 and pa rt 2 of the RO Code are adopted, brought into force and take effect in accordance with the provisions of article VI of the present Protocol; ( b ) amendments to part 3 of the RO Code are adopted by the Maritime Safety Committee in accordance with its Rules o f Procedure; and ( c ) any amendments adopted by the Maritime Safety Committee and the Marine Environment Protection Committee are identical and come into force or take effect at the same time, as appropriate . Regulation 3 Definitions of terms used in the Annexes ( 1 ) Length ( a ) The length ( L ) shall be taken as 96 % of the total length on a waterline at 85 % of the least moulded depth measured from the top of the keel, or as the length from the fore side of the stem to the axis of the rudder stock on that waterline, if that be greater . ( b ) For ships without a rudder stock, the length ( L ) is to be taken as 96 % of the waterline at 85 % of the least moulded depth . ( c ) Where the stem contour is concave above the waterline at 85 % of the least moulded depth, both the forward terminal of the total length and the fore - side of the stem respectively shall be taken at the vertical projection to that waterline of the aftermost point of the stem contour ( above that waterline ) ( see figure 3 . 1 ). ( d ) In ships designed with a rake of keel the waterline on which this length is measured shall be parallel to the designed waterline at 85 % of the least moulded depth Dmin, found by drawing a line parallel to the keel line of the vessel ( including skeg ) tangent to the moulded sheer l ine of the freeboard deck . The least moulded depth is the vertical distance

• 4 - measured from the top of the keel to the top of the freeboard deck beam at side at the point of tangency ( see figure 3 . 2 ). ( 2 ) Perpendiculars . The forward and after perpendicular s shall be taken at the forward and after ends of the length ( L ). The forward perpendicular shall coincide with the foreside of the stem on the waterline on which the length is measured . ( 3 ) Amidships . Amidships is at the middle of the length ( L ). ( 4 ) Brea dth . Unless expressly provided otherwise, the breadth ( B ) is the maximum breadth of the ship, measured amidships to the moulded line of the frame in a ship with a metal shell and to the outer surface of the hull in a ship with a shell of any other material . ( 5 ) Moulded depth ( a ) The moulded depth is the vertical distance measured from the top of the keel to the top of the freeboard deck beam at side . In wood and composite ships the distance is measured from the lower edge of the keel rabbet . Where the form at the lower part of the midship section is of a hollow character, or where thick garboards are fitted, the distance

• 5 - is measured from the point where the line of the flat of the bottom continued inwards cuts the side of the keel . ( b ) In ships having rounde d gunwales, the moulded depth shall be measured to the point of intersection of the moulded lines of deck and sides, the lines extending as though the gunwale were of angular design . ( c ) Where the freeboard deck is stepped and the raised part of the deck e xtends over the point at which the moulded depth is to be determined, the moulded depth shall be measured to a line of reference extending from the lower part of the deck along a line parallel with the raised part . ( 6 ) Depth for freeboard ( D ) ( a ) The depth for freeboard ( D ) is the moulded depth amidships, plus the freeboard deck thickness at side . ( b ) The depth for freeboard ( D ) in a ship having a rounded gunwale with a radius greater than 4 % of the breadth ( B ) or having topsides of unusual form is the dept h for freeboard of a ship having a midship section with vertical topsides and with the same round of beam and area of topside section equal to that provided by the actual midship section . ( 7 ) Block coefficient ( a ) The block coefficient ( Cb ) is given by : V is the volume of the moulded displacement of the ship, excluding appendages, in a ship with a metal shell, and is the volume of displacement to the outer surface of the hull in a ship with a shell of any other material, both taken at a moulded draught of d1; and where d1 is 85 % of the least moulded depth . ( b ) When calculating the block coefficient of a multi - hull craft, the full breadth ( B ) as defined in paragraph ( 4 ) is to be used and not the breadth of a single hull . ( 8 ) Freeboard . The freeboard assigned is the distance measured vertically downwards amidships from the upper edge of the deck line to the upper edge of the related load line . ( 9 ) Freeboard deck ( a ) The freeboard deck is normally the uppermost complete deck exposed to weather and sea, which has permanent means of closing all openings in the weather part thereof, and below which all openings in the sides of the ship are fitted with permanent means of watertight closing . ( b ) Lower deck as a freeboard deck

• 6 - At the option of the owner and subject to the approval of the Administration, a lower deck may be designated as the freeboard deck provided it is a complete and permanent deck continuous in a fore and aft direction at least between the machinery space and peak bulkheads and continuous a thwartships . ( i ) When this lower deck is stepped the lowest line of the deck and the continuation of that line parallel to the upper part of the deck is taken as the freeboard deck . ( ii ) When a lower deck is designated as the freeboard deck, that part of t he hull which extends above the freeboard deck is treated as a superstructure so far as concerns the application of the conditions of assignment and the calculation of freeboard . It is from this deck that the freeboard is calculated . ( iii ) When a lower dec k is designated as the freeboard deck, such deck as a minimum shall consist of suitably framed stringers at the ship sides and transversely at each watertight bulkhead which extends to the upper deck, within cargo spaces . The width of these stringers shall not be less than can be conveniently fitted having regard to the structure and the operation of the ship . Any arrangement of stringers shall be such that structural requirement can also be met . ( c ) Discontinuous freeboard deck, stepped freeboard deck . ( i ) Where a recess in the freeboard deck extends to the sides of the ship and is in excess of one metre in length, the lowest line of the exposed deck and the continuation of that line parallel to the upper part of the deck is taken as the freeboard deck ( see figure 3 . 3 ). ( ii ) Where a recess in the freeboard deck does not extend to the sides of the ship, the upper part of the deck is taken as the freeboard deck . ( iii ) Recesses not extending from side to side in a deck below the exposed deck, designated as the freeboard deck, may be disregarded, provided all openings in the weather deck are fitted with weathertight closing appliances . ( iv ) Due regard shall be given to the drainage of exposed recesses and to free surface effects on stability . ( v ) Provisions of su bparagraphs ( i ) through ( iv ) are not intended to apply to dredgers, hopper barges or other similar types of ships with large open holds, where each case requires individual consideration .

• 7 - ( 10 ) Superstructure ( a ) A superstructure is a decked structure on the freeboard deck, extending from side to side of the ship or with the side plating not being inboard of the shell plating more than 4 % of the breadth ( B ). ( b ) An enclosed superstructure is a superstructure with : ( i ) enclosing bulkheads of efficient const ruction; ( ii ) access openings, if any, in these bulkheads fitted with doors complying with the requirements of regulation 12; ( iii ) all other openings in sides or ends of the superstructure fitted with efficient weathertight means of closing . A bridge or p oop shall not be regarded as enclosed unless access is provided for the crew starting from any point on the uppermost complete exposed deck or higher to reach machinery and other working spaces inside these superstructures by alternative means which are av ailable at all times when bulkhead openings are closed . ( c ) The height of a superstructure is the least vertical height measured at side from the top of the superstructure deck beams to the top of the freeboard deck beams . ( d ) The length of a superstructur e ( S ) is the mean length of the part of the superstructure which lies within the length ( L ). ( e ) Bridge . A bridge is a superstructure which does not extend to either the forward or after perpendicular . ( f ) Poop . A poop is a superstructure which extends fro m the after perpendicular forward to a point which is aft of the forward perpendicular . The poop may originate from a point aft of the aft perpendicular .

• 8 - ( g ) Forecastle . A forecastle is a superstructure which extends from the forward perpendicular aft to a point which is forward of the after perpendicular . The forecastle may originate from a point forward of the forward perpendicular . ( h ) Full superstructure . A full superstructure is a superstructure which, as a minimum, extends from the forward to the afte r perpendicular . ( i ) Raised quarterdeck . A raised quarterdeck is a superstructure which extends forward from the after perpendicular, generally has a height less than a normal superstructure, and has an intact front bulkhead ( sidescuttles of the non - openin g type fitted with efficient deadlights and bolted man hole covers ) ( see figure 3 . 4 ). Where the forward bulkhead is not intact due to doors and access openings, the superstructure is then to be considered as a poop . ( 11 ) Superstructure deck . A superstruc ture deck is a deck forming the upper boundary of a superstructure . ( 12 ) Flush deck ship . A flush deck ship is one which has no superstructure on the freeboard deck . ( 13 ) Weathertight . Weathertight means that in any sea conditions water will not penetrate into the ship . ( 14 ) Watertight . Watertight means capable of preventing the passage of water through the structure in either direction with a proper margin of resistance under the pressure due to the maximum head of water which it might have to sustain . ( 15 ) Well . A well is any area on the deck exposed to the weather, where water may be entrapped . Wells are considered to be deck areas bounded on two or more sides by deck structures .

• 9 - ( 16 ) 2008 IS Code means the International Code on Intact Stability, 2008, co nsisting of an introduction, part A ( the provisions of which shall be treated as mandatory ) and part B ( the provisions of which shall be treated as recommendatory ) , as adopted by resolution MSC . 267 ( 85 ) , provided that : . 1 amendments to the introduction and part A of the Code are adopted, brought into force and take effect in accordance with the provisions of article VI of the 1988 Load Lines Protocol concerning the amendment procedure applicable to Annex B to the Protoco l; and . 2 amendments to part B of the Code are adopted by the Maritime Safety Committee in accordance with its Rules of Procedure . ( 17 ) Audit means a systematic, independent and documented process for obtaining audit evidence and evaluating it objectively to determine the extent to which audit criteria are fulfilled . ( 18 ) Audit Scheme means the IMO Member State Audit Scheme established by the Organization and taking into account the guidelines developed by the Organization *. ( 19 ) Code for Implementation me ans the IMO Instruments Impl ementation Code ( III Code ) . adopted by the Organization by Reso lution A . 1070 ( 28 ) ( 20 ) Audit Standard means the Code for Implementation . Regulation 4 Deck line The deck line is a horizontal line 300 mm in length and 25 mm in breadth . It shall be marked amidships on each side of the ship, and its upper edge shall normally pass through the point where the continuation outwards of the upper surface of the freeboard deck intersects the outer surface of the shell ( as illustrated in figure 4 . 1 ) , provided that the deck line may be placed with reference to another fixed point on the ship on condition that the freeboard is correspondingly corrected . The location of the reference point and the identification of the freeboard deck shall in all cases be indicated on the International Load Line Certificate .

• 10 - Figure 4 . 1 Deck line Regulation 5 Load line mark The load line mark shall consist of a ring 300 mm in outside diameter and 25 mm wide which is intersected by a horizontal line 450 mm in length and 25 mm in breadth , the upper edge of which passes through the centre of the ring . The centre of the ring shall be placed amidships and at a distance equal to the assigned summer freeboard measured vertically below the upper edge of the deck line ( as illustrated in figure 6 . 1 ). Regulation 6 Lines to be used with the load line mark ( 1 ) The lines which indicate the load line assigned in accordance with these regulations shall be horizontal lines 230 mm in length and 25 mm in breadth which extend forward of, unless expressly p rovided otherwise, and at right angles to, a vertical line 25 mm in breadth marked at a distance 540 mm forward of the centre of the ring ( as illustrated in figure 6 . 1 ). ( 2 ) The following load lines shall be used : ( a ) The Summer Load Line indicated by the upper edge of the line which passes through the centre of the ring and also by a line marked S . ( b ) The Winter Load Line indicated by the upper edge of a line marked W . ( c ) The Winter North Atlantic Load Line indicated by the upper edge of a line marked WNA . ( d ) The Tropical Load Line indicated by the upper edge of a line marked T . ( e ) The Fresh Water Load Line in summer indicated by the upper edge of a line marked F . The Fresh Water Load Line in summer is marked abaft the vertical line . The difference

• 11 - be tween the Fresh Water Load Line in summer and the Summer Load Line is the allowance to be made for loading in fresh water at the other load lines . ( f ) The Tropical Fresh Water Load Line indicated by the upper edge of a line marked TF and marked abaft the v ertical line . ( 3 ) If timber freeboards are assigned in accordance with these regulations, the timber load lines shall be marked in addition to ordinary load lines . These lines shall be horizontal lines 230 mm in length and 25 mm in breadth which extend aba ft unless expressly provided otherwise, and are at right angles to, a vertical line 25 mm in breadth marked at a distance 540 mm abaft the centre of the ring ( as illustrated in figure 6 . 2 ). ( 4 ) The following timber load lines shall be used : ( a ) The Summer Timber Load Line indicated by the upper edge of a line marked LS . ( b ) The Winter Timber Load Line indicated by the upper edge of a line marked LW . ( c ) The Winter North Atlantic Timber Load Line indicated by the upper edge of a line marked LWNA . ( d ) The Tro pical Timber Load Line indicated by the upper edge of a line marked LT . ( e ) The Fresh Water Timber Load Line in summer indicated by the upper edge of a line marked LF and marked forward of the vertical line . The difference between the Fresh Water Timber Lo ad Line in summer and the Summer Timber Load Line is the allowance to be made for loading in fresh water at the other timber load lines . ( f ) The Tropical Fresh Water Timber Load Line indicated by the upper edge of a line marked LTF and marked forward of th e vertical line . ( 5 ) Where the characteristics of a ship or the nature of the ship ’ s service or navigational limits make any of the seasonal lines inapplicable, these lines may be omitted . ( 6 ) Where a ship is assigned a greater than minimum freeboard so th at the load line is marked at a position corresponding to, or lower than, the lowest seasonal load line assigned at minimum freeboard in accordance with the present Protocol, only the Fresh Water Load Line need be marked . ( 7 ) Where a Winter North Atlantic Load Line is identical with the Winter Load Line corresponding to the same vertical line, this load line shall be marked W . ( 8 ) Alternative / additional load lines required by other international conventions in force may be marked at right angles to and abaf t the vertical line specified in paragraph ( 1 ).

• 12 - Regulation 7 Mark of assigning Authority The mark of the Authority by whom the load lines are assigned may be indicated alongside the load line ring above the horizontal line which passes through the centre of the ring, or above and below it . This mark shall consist of not more than four initials to identify the Authority’s name, each measuring approximately 115 mm in height and 75 mm in width Regulation 8 Details of marking The ring, lines and letters shall be painted in white or yellow on a dark ground or in black on a light ground . They shall also be permanently marked on the sides of the ships to the satisfaction of the Administration . The marks shall be plainly visible and, if necessary, special arr angements shall be made for this purpose .

• 13 - Regulation 9 Verification of marks The International Load Line Certificate shall not be delivered to the ship until the officer or surveyor acting under the provisions of article 13 of the Convention has certified that the marks are correctly and permanently indicated on the ship ’ s sides . CHAPTER II CONDITIONS OF ASSIGNMENT OF FREEBOARD Regulation 10 Information to be supplied to the master ( 1 ) The master of every new ship shall be supplied with information to arrange for the loading and ballasting of his ship in such a way as to avoid the creation of any unacceptable stresses in the ship ’ s structure, provided that this requirement need not apply to any particular length, design or class of ship where the Admini stration considers it to be unnecessary . ( 2 ) Information shall be provided to the master in a form that is approved by the Administration or a recognised organization . Stability information, and loading information also related to ship strength when requir ed under paragraph ( 1 ) , shall be carried on board at all times together with evidence that the information has been approved by the Administration . ( 3 ) A ship which is not required under the International Convention for Safety of Life at Sea in force to un dergo an inclining test upon its completion shall : ( a ) be so inclined and the actual displacement and position of the centre of gravity shall be determined for the lightship condition; ( b ) if the Administration so approves, have its inclining test on completion dispensed with, provided basic stability data are available from the inclining test of a sister ship and it is shown to the satisfaction of the Administration that reliable stability information for the ship can be obtained from such basic data; ( c ) if the Administration decides that the performance of an inclining experiment is not practicable or safe or yields inaccurate results due to the specific proportions, arrangements, strength or hull form of a ship, have the ship’s lightship characteristics determined by a detailed weight estimate confirmed by a lightweight survey; ( d ) have such information * supplied for the use of its master as is necessary to enable the master, by rapid and simple processes, to obta in accurate guidance as to the stability of the ship under all conditions likely to be encountered in normal service; and * Refer to the Code on Intact Stability for All Types of Ships covered by IMO Instruments, adopted by the Organization by resolution A . 749 ( 18 ) , as amended .

• 14 - ( e ) carry on board at all times its approved stability information toge ther with evidence that the information has been approved by the Administration . ( 4 ) Where any alterations are made to a ship so as to materially affect the loading or stability information supplied to the master, amended information shall be provided . If necessary the ship shall be re - inclined . Regulation 11 Superstructure end bulkheads Bulkheads at exposed ends of enclosed superstructures shall be of an acceptable level of strength . Regulation 12 Doors ( 1 ) All access openings in bulkheads at ends of enc losed superstructures shall be fitted with doors of steel or other equivalent material, permanently and strongly attached to the bulkhead, and framed, stiffened and fitted so that the whole structure is of equivalent strength to the un - pierced bulkhead and weathertight when closed . The means for securing these doors weathertight shall consist of gaskets and clamping devices or other equivalent means and shall be permanently attached to the bulkhead or to the doors themselves, and the doors shall be so arran ged that they can be operated from both sides of the bulkhead . ( 2 ) Unless otherwise permitted by the Administration, doors shall open outwards to provide additional security against the impact of the sea . ( 3 ) Except as otherwise provided in these regulatio ns, the height of the sills of access openings in bulkheads at ends of enclosed superstructures shall be at least 380 mm above the deck . ( 4 ) Portable sills shall be avoided . However, in order to facilitate the loading / unloading of heavy spare parts or simi lar, portable sills may be fitted on the following conditions : ( a ) they shall be installed before the ship leaves port; and ( b ) they shall be gasketed and fastened by closely spaced through bolts . Regulation 13 Position of hatchways, doorways and ventilators For the purpose of these regulations, two positions of hatchways, doorways and ventilators are defined as follows :

• 15 - Position 1 - Upon exposed freeboard and raised quarter decks, and upon exposed superstructure decks situated forward of a point located a quarter of the ship’s length from the forward perpendicular . Position 2 - Upon exposed superstructure decks situated abaft a quarter of the ship’s length from the forward perpendicular and located at least one standard height of superstructure ab ove the freeboard deck . Upon exposed superstructure decks situated forward of a point located a quarter of the ship’s length from the forward perpendicular and located at least two standard heights of superstructure above the freeboard deck . Regulation 14 Cargo and other hatchways ( 1 ) The construction and means for securing the weathertightness of cargo and other hatchways in position 1 and 2 shall be at least equivalent to the requirements of regulation 16, unless the application of regulation 15 to such hatchways is granted by the Administration . ( 2 ) Coamings and hatchway covers to exposed hatchways on decks above the superstructure deck shall comply with the requirements of the Administration . Regulation 14 - 1 Hatchway coamings ( 1 ) The coamings of hatchw ays shall be of substantial construction in accordance with their position, and their height above the deck shall be at least as follows : ( a ) 600 mm if in position 1 ; and ( b ) 450 mm if in position 2 . ( 2 ) In the case of hatchways which comply with regulation 16 ( 2 ) through ( 5 ) , the height of these coamings may be reduced, or the coamings omitted entirely, on condition that the Administration is satisfied that the safety of the ship is not thereby impaired in any sea conditions . Regulation 15 Hatchways closed by portable covers and secured weathertight by tarpaulins and battening devices Hatchway covers ( 1 ) The width of each bearing surface for hatchway covers shall be at least 65 mm . ( 2 ) Where covers are made of wood, the finished thickness sh all be at least 60 mm in association with a span of not more than 1 . 5 m .

• 16 - ( 3 ) Where covers are made of mild steel the strength shall be calculated in accordance with the requirement of regulation 16 ( 2 ) to ( 4 ) and the product of the maximum stress thus calcu lated and the factor 1 . 25 shall not exceed the minimum upper yield point strength of the material . They shall be so designed as to limit the deflection to not more than 0 . 0056 times the span under these loads . Portable beams ( 4 ) Where portable beams for su pporting hatchway covers are made of mild steel, the strength shall be calculated with assumed loads not less than 3 . 5 t / m ² on hatchways in position 1 and not less than 2 . 6 t / m ² on hatchways in position 2 and the product of the maximum stress thus calculat ed and the factor 1 . 47 shall not exceed the minimum upper yield point strength of the material . They shall be so designed as to limit the deflection to not more than 0 . 0044 times the span under these loads . ( 5 ) The assumed loads on hatchways in position 1 may be reduced to 2 t / m ² for ships 24 m in length and shall be not less than 3 . 5 t / m ² for ships 100 m in length . The corresponding loads on hatchways in position 2 may be reduced to 1 . 5 t / m ² and 2 . 6 t / m ², respectively . In all cases, values at intermediate lengths shall be obtained by linear interpolation . Pontoon covers ( 6 ) Where pontoon covers used in place of portable beams and covers are made of mild steel, the strength shall be calculated in accordance with the requirement of regulation 16 ( 2 ) to ( 4 ) and the product of the maximum stress thus calculated and the factor 1 . 47 shall not exceed the minimum upper yield point strength of the material . They shall be so designed as to limit the deflection to not more than 0 . 0044 times the span . Mild steel plating forming the tops of covers shall be not less in thickness than 1 % of the spacing of stiffeners or 6 mm if that be greater . ( 7 ) The strength and stiffness of covers made of materials other than mild steel shall be equivalent to those of mild steel to the sa tisfaction of the Administration . Carriers or sockets ( 8 ) Carriers or sockets for portable beams shall be of substantial construction, and shall provide means for the efficient fitting and securing of the beams . Where rolling types of beams are used, the a rrangements shall ensure that the beams remain properly in position when the hatchway is closed . Cleats ( 9 ) Cleats shall be set to fit the taper of the wedges . They shall be at least 65 mm wide and spaced not more than 600 mm centre to centre; the cleats a long each side or end shall be not more than 150 mm from the hatch corners .

• 17 - Battens and wedges ( 10 ) Battens and wedges shall be efficient and in good condition . Wedges shall be of tough wood or other equivalent material . They shall have a taper of not more than 1 in 6 and shall be not less than 13 mm thick at the toes . Tarpaulins ( 11 ) At least two layers of tarpaulin in good condition shall be provided for each hatchway in position 1 or 2 . The tarpaulins shall be waterproof and of ample strength . They shall be of a material of at least an approved standard weight and quality . Securing of hatchway covers ( 12 ) For all hatchways in position 1 or 2 steel bars or other equivalent means shall be provided in order efficiently and independently to secure each sectio n of hatchway covers after the tarpaulins are battened down . Hatchway covers of more than 1 . 5 m in length shall be secured by at least two such securing appliances . Regulation 16 Hatchways closed by weathertight covers of steel or other equivalent materials ( 1 ) All hatchways in position 1 and 2 shall be fitted with hatch covers of steel or other equivalent material . Except as provided in regulation 14 ( 2 ) , such covers shall be weathertight and fitted with gaskets and clamping devices . The means for s ecuring and maintaining weathertightness shall be to the satisfaction of the Administration . The arrangements shall ensure that the tightness can be maintained in any sea conditions, and for this purpose tests for tightness shall be required at the initial survey, and may be required at renewal and annual surveys or at more frequent intervals . Hatch cover minimum design loads ( 2 ) For ships of 100 m in length and above : ( a ) Position 1 hatch covers located in the forward quarter of the ship?s length shall be designed for wave loads at the forward perpendicular, calculated from the following equation : Load = 5 + ( L H - 100 ) a t / m ² where : L H is L for ships of not more than 340 m but not less than 100 m in length and equal to 340 m for ships of more than 340 m in length; L is the length of the ship ( meters ) , as defined in regulation 3 ; a is given in table 16 . 1 ,

• 18 - and reduced linearly to 3 . 5 t / m ² at the end of the forward quarter’s length, as shown in table 16 . 2 . The design load used for each hatch cover panel shall b e that determined at its midpoint location . ( b ) All other position 1 hatch covers shall be designed to 3 . 5 t / m ² . ( c ) Position 2 hatch covers shall be designed to 2 . 6 t / m ² . ( d ) Where a position 1 hatchway is located at least one superstructure standard height higher than the freeboard deck, it may be designed to 3 . 5 t / m ² . a Type B freeboard ships 0 . 0074 Ships assigned reduced freeboard by regulation 27 ( 9 ) or ( 10 ) 0 . 0363 Table 16 . 1 ( 3 ) For ships 24 m in length : ( a ) Position 1 hatch covers located in the forward quarter of the ship’s length shall be designed for wave loads of 2 . 43 t / m ² at the forward perpendicular and reduced linearly to 2 t / m ² at the end of the forward quarter’s length as shown in table 16 . 2 . The design load used for each hatch cov er panel shall be that determined at its midpoint location . ( b ) All other position 1 hatch covers shall be designed to 2 t / m ² . ( c ) Position 2 hatch covers shall be designed to 1 . 5 t / m ² . ( d ) Where a position 1 hatchway is located at least one superstructure standard height higher than the freeboard deck, it may be designed to 2 t / m ² . ( 4 ) For ships between 24 m and 100 m in length, and for positions between FP and 0 . 25L, wave loads shall be obtained by linear interpolation of the values shown in table 16 . 2 . Longitudinal position FP 0 . 25 L Aft of 0 . 25 L L ＞ 100 m Freeboard deck Equation in 16 ( 2 )( a ) 3 . 5 t / m ² 3 . 5 t / m ² Superstructure deck 3 . 5 t / m ² 2 . 6 t / m ² L = 100 m Freeboard deck 5 t / m ² 3 . 5 t / m ² 3 . 5 t / m ² Superstructure deck 3 . 5 t / m ² 2 . 6 t / m ² L = 24 m Freeboard deck 2 . 43 t / m ² 2 t / m ² 2 t / m ² Superstructure deck 2 t / m ² 1 . 5 t / m ² Table 16 . 2

• 19 - ( 5 ) All hatch covers shall be designed such that : ( a ) the product of the maximum stress determined in accordance with the above loads and the factor of 1 . 25 does not exceed the minimum upper yield point strength of the material in tension and the critical buckling strength in compression; ( b ) the deflection is limited to not more than 0 . 005 6 times the span; ( c ) steel plating forming the tops of covers is not less in thickness than 1 % of the spacing of stiffeners or 6 mm if that be greater; and ( d ) an appropriate corrosion margin is incorporated . Securing arrangements ( 6 ) The means for securing and maintaining weathertightness by other means than gaskets and clamping shall be to the satisfaction of the Administration . ( 7 ) Hatch covers which rest on coamings shall be located in their closed position by means capable of withstanding horizo ntally acting loads in any sea conditions . Regulation 17 Machinery space openings ( 1 ) Machinery space openings in position 1 or 2 shall be properly framed and efficiently enclosed by steel casings of ample strength, and where the casings are not protected by other structures their strength shall be specially considered . Access openings in such casings shall be fitted with doors complying with the requirements of regulation 12 ( 1 ) , the sills of which sh all be at least 600 mm above the deck if in position 1, and at least 380 mm above the deck if in position 2 . Other openings in such casings shall be fitted with equivalent covers, permanently attached in their proper positions . ( 2 ) Where machinery casings are not protected by other structures, double doors ( i . e . inner and outer doors complying with the requirements of regulation 12 ( 1 )) shall be required for ships assigned freeboards less than those based on table 28 . 2 of regulation 28 . An inner sill of 230 mm in conjunction with the outer sill of 600 mm shall be provided . ( 3 ) Coamings of any fiddley, funnel or machinery space ventilator in an exposed position on the freeboard deck or superstructure deck shall be as high above the deck as is reasonable and pr acticable . In general, ventilators necessary to continuously supply the machinery space shall have coamings of sufficient height to comply with regulation 19 ( 3 ) , without having to fit weathertight closing appliances . Ventilators necessary to continuously s upply the emergency generator room, if this is considered buoyant in the stability calculation or protecting opening

• 20 - leading below, shall have coamings of sufficient height to comply with regulation 19 ( 3 ) , without having to fit weathertight closing applian ces . ( 4 ) Where due to ship size and arrangement this is not practicable, lesser heights for machinery space and emergency generator room ventilator coamings, fitted with weathertight closing appliances in accordance with regulation 19 ( 4 ) , may be permitted by the Administration in combination with other suitable arrangements to ensure an uninterrupted, adequate supply of ventilation to these spaces . ( 5 ) Fiddley openings shall be fitted with strong covers of steel or other equivalent material permanently atta ched in their proper positions and capable of being secured weathertight . Regulation 18 Miscellaneous openings in freeboard and superstructure decks ( 1 ) Manholes and flush scuttles in position 1 or 2 or within superstructures other than enclosed superstru ctures shall be closed by substantial covers capable of being made watertight . Unless secured by closely spaced bolts, the covers shall be permanently attached . ( 2 ) Openings in freeboard decks other than hatchways, machinery space openings, manholes and fl ush scuttles shall be protected by an enclosed superstructure, or by a deckhouse or companionway of equivalent strength and weathertightness . Similarly, any such opening in an exposed superstructure deck, in the top of a deckhouse on the freeboard deck whi ch gives access to a space below the freeboard deck or a space within an enclosed superstructure shall be protected by an efficient deckhouse or companionway . Doorways in such companionways or deckhouses that lead or give access to stairways leading below, shall be fitted with doors in accordance with regulation 12 ( 1 ). Alternatively, if stairways within a deckhouse are enclosed within properly constructed companionways fitted with doors complying with regulation 12 ( 1 ) , the external door need not be weathert ight . ( 3 ) Openings in the top of a deckhouse on a raised quarterdeck or superstructure of less than standard height, having a height equal to or greater than the standard quarterdeck height, shall be provided with an acceptable means of closing but need no t be protected by an efficient deckhouse or companionway as defined in the regulation, provided that the height of the deckhouse is at least the standard height of a superstructure . Openings in the top of the deck house on a deck house of less than a stand ard superstructure height may be treated in a similar manner . ( 4 ) In position 1 the height above the deck of sills to the doorways in companionways shall be at least 600 mm . In position 2 it shall be at least 380 mm .

• 21 - ( 5 ) Where access is provided from the d eck above as an alternative to access from the freeboard deck in accordance with regulation 3 ( 10 )( b ) , then the height of sills into a bridge or poop shall be 380 mm . The same shall apply to deckhouses on the freeboard deck . ( 6 ) Where access is not provided from above, the height of the sills to doorways in deckhouses on the freeboard deck shall be 600 mm . ( 7 ) Where the closing appliances of access openings in superstructures and deckhouses are not in accordance with regulation 12 ( 1 ) , interior deck openings shall be considered exposed ( i . e . situated in the open deck ). Regulation 19 Ventilators ( 1 ) Ventilators in position 1 or 2 to spaces below freeboard deck or decks of enclosed superstructures shall have coamings of steel or other equivalent material, substantially constructed and efficiently connected to the deck . Ventilators in position 1 shall have coamings of a height of at least 900 mm above the deck; in position 2 the coamings shall be of a height at least 760 mm above the deck . Where the coaming of any ventilator exceeds 900 mm in height it shall be specially supported . ( 2 ) Ventilators passing through superstructures other than enclosed superstructures shall have substantially constructed coamings of steel or other equivalent material at the freeb oard deck . ( 3 ) Ventilators in position 1 the coamings of which extend to more than 4 . 5 m above the deck, and in position 2 the coamings of which extend to more than 2 . 3 m above the deck, need not be fitted with closing arrangements unless specifically requ ired by the Administration . ( 4 ) Except as provided in paragraph ( 3 ) , ventilator openings shall be provided with weathertight closing appliances of steel or other equivalent material . In ships of not more than 100 m in length the closing appliances shall be permanently attached; where not so provided in other ships, they shall be conveniently stowed near the ventilators to which they are to be fitted . ( 5 ) In exposed locations, the height of coamings may be increased to the satisfaction of the Administration . Regulation 20 Air pipes ( 1 ) Where air pipes to ballast and other tanks extend above the freeboard or superstructure decks, the exposed parts of the pipes shall be of substantial construction; the height from the deck to the point where water may have acc ess below shall be at least 760 mm on the freeboard deck and 450 mm on the superstructure deck .

• 22 - ( 2 ) Where these heights may interfere with the working of the ship, a lower height may be approved, provided that the Administration is satisfied that the closi ng arrangements and other circumstances justify a lower height . ( 3 ) Air pipes shall be provided with automatic closing devices . ( 4 ) Pressure - vacuum valves ( PV valves ) may be accepted on tankers . Regulation 21 Cargo ports and other similar openings ( 1 ) Car go ports and other similar openings in the sides of ships below the freeboard deck shall be fitted with doors so designed as to ensure the same watertightness and structural integrity as the surrounding shell plating . Unless otherwise granted by the Admini stration, these opening shall open outwards . The number of such openings shall be the minimum compatible with the design and proper working of the ship . ( 2 ) Unless otherwise permitted by the Administration, the lower edge of openings referred to in paragra ph ( 1 ) shall not be below a line drawn parallel to the freeboard deck at side, which is at its lowest point at least 230 mm above the upper edge of the uppermost load line . ( 3 ) Where it is permitted to arrange cargo ports and other similar openings with th eir lower edge below the line specified in paragraph ( 2 ) , additional features shall be fitted to maintain the watertight integrity . ( 4 ) The fitting of a second door of equivalent strength and watertightness is one acceptable arrangement . A leakage detectio n device shall be provided in the compartment between the two doors . Drainage of this compartment to the bilges, controlled by a readily accessible screw down valve, shall be arranged . The outer door shall open outwards . ( 5 ) Arrangements for bow doors and their inner doors, side doors and stern doors and their securings shall be in compliance with the requirements of a recognised organization, or with the applicable national standards of the Administration which provide an equivalent level of safety . Regul ation 22 Scuppers, inlets and discharges ( 1 ) ( a ) Discharges led through the shell either from spaces below the freeboard deck or from within superstructures and deckhouses on the freeboard deck fitted with doors complying with the requirements of regulation 12 shall, except as provided in paragraph ( 2 ) , be fitted with efficient and accessible means for preventing water from passing inboard . Normally

• 23 - each separate discharge shall have one automatic non - return valve with a positive means of closing i t from a position above the freeboard deck . Where the inboard end of the discharge pipe is located at least 0 . 01L above the Summer Load Line, the discharge may have two automatic non - return valves without positive means of closing . Where that vertical dist ance exceeds 0 . 02L, a single automatic non - return valve without positive means of closing may be accepted . The means for operating the positive action valve shall be readily accessible and provided with an indicator showing whether the valve is open or clo sed . ( b ) One automatic non - return valve and one sluice valve controlled from above the freeboard deck instead of one automatic non - return valve with a positive means of closing from a position above the freeboard deck, is acceptable . ( c ) Where two automatic non - return valves are required, the inboard valve shall always be accessible for examination under service conditions ( i . e . , the inboard valve shall be above the level of the Tropical Load Line ). If this is not practicable, the inboard valve need not be located above the Tropical Load Line, provided that a locally controlled sluice valve is fitted between the two automatic non - return valves . ( d ) Where sanitary discharges and scuppers lead overboard through the shell in way of machinery spaces, a l ocally operated positive closing valve at the shell, together with a non - return valve inboard, is acceptable . The controls of the valves shall be in an easily accessible position . ( e ) The position of the inboard end of discharges shall be related to the Su mmer Timber Load Line when a timber freeboard is assigned . ( f ) The requirements for non - return valves are applicable only to those discharges which remain open during the normal operation of a ship . For discharges which are to be kept closed at sea, a sing le screw down valve operated from the deck is acceptable . ( g ) Table 22 . 1 provides the acceptable arrangements of scuppers, inlets and discharges . ( 2 ) Scuppers led through the shell from enclosed superstructures used for the carriage of cargo shall be permi tted only where the edge of the freeboard deck is not immersed when the ship heels 5° either way . In other cases the drainage shall be led inboard in accordance with the requirements of the International Convention for the Safety of Life at Sea in force . ( 3 ) In manned machinery spaces, main and auxiliary sea inlets and discharges in connection with the operation of machinery may be controlled locally . The controls shall be readily accessible and shall be provided with indicators showing whether the valves a re open or closed .

• 24 - ( 4 ) Scuppers and discharge pipes originating at any level and penetrating the shell either more than 450 mm below the freeboard deck or less than 600 mm above the Summer Load Line shall be provided with a non - return valve at the shell . T his valve, unless required by paragraph ( 1 ) , may be omitted if the piping is of substantial thickness ( see paragraph ( 7 ) below ). ( 5 ) Scuppers leading from superstructures or deckhouses not fitted with doors complying with the requirements of regulation 12 shall be led overboard . ( 6 ) All shell fittings and the valves required by this regulation shall be of steel, bronze or other approved ductile material . Valves of ordinary cast iron or similar material are not acceptable . All pipes to which this regulation refers shall be of steel or other equivalent material to the satisfaction of the Administration . ( 7 ) Scupper and discharge pipes : ( a ) For scupper and discharge pipes, where substantial thickness is not required : ( i ) for pipes having an external diameter eq ual to or less than 155 mm, the thickness shall not be less than 4 . 5 mm; ( ii ) for pipes having an external diameter equal to or more than 230 mm, the thickness shall not be less than 6 mm . Intermediate sizes shall be determined by linear interpolation . ( b ) For scupper and discharge pipes, where substantial thickness is required : ( i ) for pipes having an external diameter equal to or less than 80 mm, the thickness shall not be less than 7 mm; ( ii ) for pipes having an external diameter of 180 mm, the thickness shall not be less than 10 mm; ( iii ) for pipes having an external diameter equal to or more than 220 mm, the thickness shall not be less than 12 . 5 mm . Intermediate sizes shall be determined by linear interpolation .

• 25 -

• 26 - Regulation 22 - 1 Garbage chutes ( 1 ) Two gate valves controlled from the working deck of the chute instead of the nonreturn valve with a positive means of closing from a position above the freeboard deck which comply with the following requirements are acceptable : ( a ) the lower gate valve shall b e controlled from a position above the freeboard deck . An interlock system between the two valves shall be arranged; ( b ) the inboard end shall be located above the waterline formed by an 8 . 5° heel to port or starboard at a draft corresponding to the assign ed summer freeboard, but not less than 1,000 mm above the summer waterline . Where the inboard end exceeds 0 . 01L above the summer waterline, valve control from the freeboard deck is not required, provided the inboard gate valve is always accessible under se rvice conditions; and ( c ) alternatively, the upper and lower gate valves may be replaced by a hinged weathertight cover at the inboard end of the chute together with a discharge flap . The cover and flap shall be arranged with an interlock so that the disch arge flap cannot be operated until the hopper cover is closed . ( 2 ) The entire chute, including the cover, shall be constructed of material of substantial thickness . ( 3 ) The controls for the gate valves and / or hinged covers shall be clearly marked : ” Keep cl osed when not in use “. ( 4 ) Where the inboard end of the chute is below the freeboard deck of a passenger ship or the equilibrium waterlines of a cargo ship to which damage stability requirements apply, then : ( a ) the inboard end hinged cover / valve shall be watertight; ( b ) the valve shall be a screw - down non - return valve fitted in an easily accessible position above the deepest load line; and ( c ) the screw - down non - return valve shall be controlled from a position above the bulkhead deck and provided with open / closed indicators . The valve control shall be clearly marked : ” Keep closed when not in use “. Regulation 22 - 2 Spurling pipes and cable lockers ( 1 ) Spurling pipes and cable lockers shall be watertight up to the deck exposed to weather . ( 2 ) Where means of ac cess are provided, they shall be closed by a substantial cover and secured by closely spaced bolts . ( 3 ) Spurling pipes through which anchor cables are led shall be provided with permanently attached closing appliances to minimize water ingress .

• 27 - Regulation 23 Side scuttles, windows and skylights ( 1 ) Side scuttles and windows, together with their glasses, deadlights and storm covers * , if fitted, shall be of an approved design and substantial construction . Non - metallic frames are not acceptable . * Deadlights are fitted to the inside of windows and side scuttles, while storm covers are fitted to the outside of windows, where accessible, and may be hinged or portable . ( 2 ) Side scuttles are defined as being round or oval openings with an area not exceeding 0 . 16 m ² . Round or oval openings having areas exceeding 0 . 16 m ² shall be treated as windows . ( 3 ) Windows are defined as being rectangular openings generally, having a radius at each corner relative to the window size and round or oval openings with an area exceed ing 0 . 16 m ² . ( 4 ) Side scuttles to the following spaces shall be fitted with hinged inside deadlights : ( a ) spaces below freeboard deck; ( b ) spaces within the first tier of enclosed superstructures; and ( c ) first tier deckhouses on the freeboard deck protect ing openings leading below or considered buoyant in stability calculations . Deadlights shall be capable of being closed and secured watertight if fitted below the freeboard deck and weathertight if fitted above . ( 5 ) Side scuttles shall not be fitted in suc h a position that their sills are below a line drawn parallel to the freeboard deck at side and having its lowest point 2 . 5 % of the breadth ( B ) , or 500 mm, whichever is the greatest distance, above the Summer Load Line ( or Timber Summer Load Line if assign ed ). ( 6 ) If the required damage stability calculations indicate that the side scuttles would become immersed at any intermediate stage of flooding or the final equilibrium waterline, they shall be of the non - opening type . ( 7 ) Windows shall not be fitted in the following locations : ( a ) below the freeboard deck; ( b ) in the first tier end bulkheads or sides of enclosed superstructures; or ( c ) in first tier deckhouses that are considered buoyant in the stability calculations . ( 8 ) Side scuttles and windows at th e side shell in the second tier shall be provided with hinged inside deadlights capable of being closed and secured weathertight if the superstructure protects direct access to an opening leading below or is considered buoyant in the stability calculations .

• 28 - ( 9 ) Side scuttles and windows in side bulkheads set inboard from the side shell in the second tier which protect direct access below to spaces listed in paragraph ( 4 ) shall be provided with either hinged inside deadlights or, where they are accessible, p ermanently attached external storm covers which are capable of being closed and secured weathertight . ( 10 ) Cabin bulkheads and doors in the second tier and above separating side scuttles and windows from a direct access leading below or the second tier considered buoyant in the stability calculations may be accepted in place of deadlights or storm covers f itted to the side scuttles and windows . ( 11 ) Deckhouses situated on a raised quarter deck or on the deck of a superstructure of less than standard height may be regarded as being in the second tier as far as the requirements for deadlights are concerned, p rovided that the height of the raised quarter deck or superstructure is equal to or greater than the standard quarter deck height . ( 12 ) Fixed or opening skylights shall have a glass thickness appropriate to their size and position as required for side scut tles and windows . Skylight glasses in any position shall be protected from mechanical damage and, where fitted in position 1 or 2, shall be provided with permanently attached deadlights or storm covers . Regulation 24 Freeing ports ( 1 ) ( a ) Where bulwarks on the weather portions of freeboard or superstructure decks form wells, ample provision shall be made for rapidly freeing the decks of water and for draining them . ( b ) Except as provided in paragraphs ( 1 )( c ) and ( 2 ) , the minimum freeing port area ( A ) on e ach side of the ship for each well on the freeboard deck shall be that given by the following formulae in cases where the sheer in way of the well is standard or greater than standard . The minimum area for each well on superstructure decks shall be one - hal f of the area given by the following formulae : Where the length of bulwark (ℓ) in the well is 20 m or less : A = 0 . 7 + 0 . 035 ℓ m ² ; where ℓ exceeds 20 m : A = 0 . 07 ℓ m ² . ℓ need in no case be taken as greater than 0 . 7L .

• 29 - If the bulwark is more than 1 . 2 m in ave rage height, the required area shall be increased by 0 . 004 m ² per metre of length of well for each 0 . 1 m difference in height . If the bulwark is less than 0 . 9 m in average height, the required area may be decreased by 0 . 004 m ² per m of length of well for e ach 0 . 1 m difference in height . ( c ) In ships with no sheer, the area calculated according to paragraph ( b ) shall be increased by 50 %. Where the sheer is less than the standard, the percentage shall be obtained by linear interpolation . ( d ) On a flush deck s hip with a deckhouse amidships having a breadth at least 80 % of the beam of the ship and the passageways along the side of the ship not exceeding 1 . 5 m in width, two wells are formed . Each shall be given the required freeing port area based upon the length of each well . ( e ) Where a screen bulkhead is fitted completely across the ship at the forward end of a midship deckhouse, the exposed deck is divided into two wells and there is no limitation on the breadth of the deckhouse . ( f ) Wells on raised quarterdec ks shall be treated as being on freeboard decks . ( g ) Gutter bars greater than 300 mm in height fitted around the weather decks of tankers in way of cargo manifolds and cargo piping shall be treated as bulwarks . Freeing ports shall be arranged in accordance with this regulation . Closures attached to the freeing ports for use during loading and discharge operations are to be arranged in such a way that jamming cannot occur while at sea . ( 2 ) Where a ship fitted with a trunk does not comply with the requirements of regulation 36 ( 1 )( e ) or where continuous or substantially continuous hatchway side coamings are fitted between detached superstructures, the minimum area of the freeing port openi ngs shall be calculated from the following table : BREADTH OF HATCHWAY OR TRUNK IN RELATION OF THE BREADTH OF SHIP AREA OF FREEING PORTS IN RELATION TO THE TOTAL AREA OF THE BULWARKS 40 % or less 20 % 75 % or more 10 % The area of freeing ports at intermediate breadths shall be obtained by linear interpolation . ( 3 ) The effectiveness of the freeing area in bulwarks required by paragraph ( 1 ) depends on the free flow area across the deck of a ship . The free flow area on deck is the net area of gaps bet ween hatchways, and between hatchways and superstructures and deckhouses up to the actual height of the bulwark . The freeing port area in bulwarks shall be assessed in relation to the net free flow area as follows :

• 30 - ( a ) If the free flow area is not less than the freeing area calculated from paragraph ( 2 ) as if the hatchway coamings were continuous, then the minimum freeing port area calculated from paragraph ( 1 ) shall be deemed sufficient . ( b ) If the free flow area is equal to, or less than the area calcu lated from paragraph ( 1 ) , the minimum freeing area in the bulwarks shall be determined from paragraph ( 2 ). ( c ) If the free flow area is smaller than calculated from paragraph ( 2 ) , but greater than calculated from paragraph ( 1 ) , the minimum freeing area in the bulwark shall be determined from the following formula : F = F1 + F2 - fpm ² where : F1 is the minimum freeing area calculated from paragraph ( 1 ) ; F2 is the minimum freeing area calculated from paragraph ( 2 ) ; and fpis the total net area of passages and ga ps between hatch ends and superstructures or deckhouses up to the actual height of bulwark . ( 4 ) In ships having superstructures on the freeboard deck or superstructure decks, which are open at either or both ends to wells formed by bulwarks on the open dec ks, adequate provision for freeing the open spaces within the superstructures shall be provided . The minimum freeing port area on each side of the ship for the open superstructure ( As ) and for the open well ( Aw ) , shall be calculated in accordance with the following procedure : ( a ) Determine the total well length ( lt ) equal to the sum of the length of the open deck enclosed by bulwarks ( lw ) and the length of the common space within the open superstructure ( ls ). ( b ) To determine As : ( i ) calculate the freeing p ort area ( A ) required for an open well of length lt in accordance with paragraph ( 1 ) with standard height bulwark assumed; ( ii ) multiply by a factor of 1 . 5 to correct for the absence of sheer, if applicable, in accordance with paragraph ( 1 )( c ) ; ( iii ) multi ply by the factor ( bo / lt ) to adjust the freeing port area for the breadth ( bo ) of the openings in the end bulkhead of the enclosed superstructure; ( iv ) to adjust the freeing port area for that part of the entire length of the well which is enclosed by the open superstructure, multiply by the factor : where lw and lt are defined in paragraph ( 4 )( a ) ;

• 31 - ( v ) to adjust the freeing port area for the distance of the well deck above the freeboard deck, for decks located more than 0 . 5 above the freeboard deck, multiply by the factor : where is the distance of the well deck above the freeboard deck and is one standard superstructure height . ( c ) To determine Aw : ( i ) the freeing port area for the open well ( Aw ) shall be calculated in accordance with paragraph ( b )( i ) , using lw to calculate a nominal freeing port area ( A ’) , and then adjusted for the actual height of the bulwark ( hb ) by the application of one of the following area corrections, whichever is applicable : for bulwarks greater than 1 . 2 m in h eight : ; for bulwarks less than 0 . 9 m in height : ; for bulwarks between 1 . 2 m and 0 . 9 m in height there is no correction ( i . e . Ac = 0 ) ; ( ii ) the corrected freeing port area ( ) shall then be adjusted for absence of sheer, if applicable, and height above freeboard deck as in paragraphs ( b )( ii ) and ( b )( v ) , using and . ( d ) The resulting freeing port areas for the open superstructure ( As ) and for the open well ( Aw ) shall be provided along each side of the open space covered by the open superstructure and e ach side of the open well, respectively . ( e ) The above relationships are summarised by the following equations, assuming lt , the sum of lw and ls , is greater than 20 m : freeing port area Aw for the open well : ( sheer correction ) ; freeing port area As for the open superstructure : ( sheer correction ) ; where lt is 20 m or less, the basic freeing port area is in accordance with paragraph ( 1 ).

• 32 - ( 5 ) The lower edges of freeing ports shall be as near the deck as practicable . Two thirds of the freeing port area required shall be provided in the half of the well nearest the lowest point of the sheer curve . One third of the freeing port area required shall be evenly spread along the remaining length of the well . With zero or little sheer on the exposed freeboard de ck or an exposed superstructure deck the freeing port area shall be evenly spread along the length of the well . ( 6 ) All freeing port openings in the bulwarks shall be protected by rails or bars spaced approximately 230 mm apart . If shutters are fitted to f reeing ports, ample clearance shall be provided to prevent jamming . Hinges shall have pins or bearings of non - corrodible material . Shutters shall not be fitted with securing appliances . Regulation 25 Protection of the crew ( 1 ) The deckhouses used for the accommodation of the crew shall be constructed to an acceptable level of strength . ( 2 ) Guard rails or bulwarks shall be fitted around all exposed decks . The height of the bulwarks or guard rails shall be at least 1 m from the deck, provided that where this height would interfere with the normal operation of the ship, a lesser height may be approved, if the Administration is satisfied that adequate protection is provided . ( 3 ) Guard rails fitted on superstructure and freeboard decks shall have at least three courses . The opening below the lowest course of the guard rails shall not exceed 230 mm . The other courses shall be not more than 380 mm apart . In the case of ships with rounded gunwales the guard rail supports shall be placed on the flat of the deck . In o ther locations, guardrails with at least two courses shall be fitted . Guard rails shall comply with the following provisions : ( a ) fixed, removable or hinged stanchions shall be fitted about 1 . 5 m apart . Removable or hinged stanchions shall be capable of be ing locked in the upright position; ( b ) at least every third stanchion shall be supported by a bracket or stay; ( c ) where necessary for the normal operation of the ship, steel wire ropes may be accepted in lieu of guard rails . Wires shall be made taut by m eans of turnbuckles; and ( d ) where necessary for the normal operation of the ship, chains fitted between two fixed stanchions and / or bulwarks are acceptable in lieu of guard rails . ( 4 ) Satisfactory means for safe passage required by regulation 25 - 1 ( in the form of guard rails, lifelines, gangways or underdeck passages, etc .) shall be provided for the protection of the crew in getting to and from their quarters, the machinery space and any other spaces used in the essential operation of the ship .

• 33 - ( 5 ) Deck ca rgo carried on any ship shall be so stowed that any opening which is in way of the cargo and which gives access to and from the crew ’ s quarters, the machinery space and all other parts used in the essential operation of the ship can be closed and secured a gainst water ingress . Protection for the crew in the form of guard rails or lifelines shall be provided above the deck cargo if there is no convenient passage on or below the deck of the ship . Regulation 25 - 1 Means for safe passage of crew ( 1 ) The safe pa ssage of crew shall be provided by at least one of the means prescribed in table 25 - 1 . 1 below : Table 25 - 1 . 1 Type of Ship Locations of access in ship Assigned summer freeboard Acceptable arrangements according to type of freeboard assigned *** Type ‘ A ’ Type ‘ B - 100 ’ Type ‘ B - 60 ’ Type ‘ B ’ and ‘ B + ’ All ships other than oil tankers * , chemical tankers * and gas carriers * 1 . 1 Access to midship quarters 1 . 1 . 1 Between poop and bridge, or 1 . 1 . 2 Bet ween poop and deckhouse containing living accommodation or navigating equipment, or both . ≤ 3,000 mm ( a ) ( b ) ( e ) ( a ) ( b ) ( e ) ( a ) ( b ) ( c )( i ) ( e ) ( f )( i ) ( a ) ( b ) ( c )( i ) ( c )( ii ) ( c )( iv ) ( d )( i ) ( d )( ii ) ( d )( iii ) ( e ) ( f )( i ) ( f )( ii ) ( f )( iv ) > 3,000 mm ( a ) ( b ) ( e ) ( a ) ( b ) ( e ) ( a ) ( b ) ( c )( i ) ( c )( ii ) ( e ) ( f )( i ) ( f )( ii ) 1 . 2 Access to ends 1 . 2 . 1 Between poop and bow ( if there is no bridge ) , 1 . 2 . 2 Between bridge and bow, or 1 . 2 . 3 Between a deckhouse containing living accommodation or navigating equipment, or both, ≤ 3,000 mm ( a ) ( b ) ( c )( i ) ( e ) ( f )( i ) ( a ) ( b ) ( c )( i ) ( c )( ii ) ( e ) ( f )( i ) ( f )( ii ) ( a ) ( b ) ( c )( i ) ( c )( ii ) ( e ) ( f )( i ) ( f )( ii ) >3,000 mm ( a ) ( b ) ( c )( i ) ( d )( i ) ( e ) ( f )( i ) ( a ) ( b ) ( c )( i ) ( c )( ii ) ( d )( i ) ( d )( ii ) ( a ) ( b ) ( c )( i ) ( c )( ii ) ( c )( iv ) ( d )( i )

• 34 - and bow, or 1 . 2 . 4 In the case of a flush deck ship, between crew accommodation and the forward and after ends of ship . ( e ) ( f )( i ) ( f )( ii ) ( d )( ii ) ( d )( iii ) ( e ) ( f )( i ) ( f )( ii ) ( f )( iv ) Oil tankers * , chemical t ankers * and gas carriers * 2 . 1 Access to bow 2 . 1 . 1 Between poop and bow or 2 . 1 . 2 Between a deckhouse containing living accommodation or navigating equipment, or both, and bow, or 2 . 1 . 3 In the case of a flush deck ship, between crew accommodation and the forward ends of ship . ≤ ( Af + Hs )** ( a ) ( e ) ( f )( i ) ( f )( v ) > ( Af + Hs )** ( a ) ( e ) ( f )( i ( f )( ii ) 2 . 2 Access to after end In the case of a flush deck ship, between crew accommodation and the after end of ship . As required in 1 . 2 . 4 for other types of ships * Oil tankers, chemical tankers and gas carriers as defined in regulations II - 1 / 2 . 12, VII / 8 . 2 and VII / 11 . 2, respectively, of the International Convention for the Safety of Life at Sea, 1974, as amended . ** A f : the minimum summer freeboard calculated as type ‘A’ ship regardless of the type freeboard actually assigned . H s : the standard height of superstructure as defined in regulation 33 . *** Arrangements ( a ) - ( f ) are described in paragraph ( 2 ) below . Locations ( i ) - ( v ) are described in paragraph ( 3 ) below . ( 2 ) Acceptable arrangements referred to in table 25 - 1 . 1 are defined as follows : ( a ) A well lighted and ventilated under - deck passageway ( with a clear opening of at least 0 . 8 m wide and 2 m high ) , as close as pra cticable to the freeboard deck, connecting and providing access to the locations in question .

• 35 - ( b ) A permanent and efficiently constructed gangway, fitted at or above the level of the superstructure deck, on or as near as practicable to the centre line of t he ship, providing a continuous platform at least 0 . 6 m in width and a non - slip surface and with guard rails extending on each side throughout its length . Guard rails shall be at least 1 m high with three courses and constructed as required in regulation 2 5 ( 3 ). A foot - stop shall be provided . ( c ) A permanent walkway at least 0 . 6 m in width, fitted at freeboard deck level and consisting of two rows of guard rails with stanchions spaced not more than 3 m . The number of courses of rails and their spacing shall be in accordance with regulation 25 ( 3 ). On type ‘B’ ships, hatchway coamings not less than 0 . 6 m in height may be accepted as forming one side of the walkway, provided that two rows of guard rails are fitted between the hatchways . ( d ) A wire rope lifeline not less than 10 mm in diameter, supported by stanchions not more than 10 m apart, or a single hand rail or wire rope attached to hatch coamings, continued and supported between hatchways . ( e ) A permanent gangway that is : ( i ) located at or above the level of the superstructure deck; ( ii ) located on or as near as practicable to the centre line of the ship; ( iii ) located so as not to hinder easy access across the working areas of the deck; ( iv ) providing a continuous platform at least 1 m in width; ( v ) constr ucted of fire resistant and non - slip material; ( vi ) fitted with guard rails extending on each side throughout its length; guard rails shall be at least 1 m high with courses as required by regulation 25 ( 3 ) and supported by stanchions spaced not more than 1 . 5 m apart; ( vii ) provided with a foot - stop on each side; ( viii ) having openings, with ladders where appropriate, to and from the deck . Openings shall not be more than 40 m apart; and ( ix ) having shelters set in way of the gangway at intervals not exceedin g 45 m if the length of the exposed deck to be traversed exceeds 70 m . Every such shelter shall be capable of accommodating at least one person and be so constructed as to afford weather protection on the forward, port and starboard sides . ( f ) A permanent walkway located at the freeboard deck level, on or as near as practicable to the centre line of the ship, having the same specifications as those for a permanent gangway listed in ( e ) , except for foot - stops . On type ‘B’ ships ( certified for the carriage of liquids in bulk ) with a combined height of hatch coaming and fitted hatch cover of not less than 1 m in height, the hatchway coamings may be accepted as forming one side of the walkway, provided that two rows of guard rails are fitted between the hatchway s .

• 36 - ( 3 ) Permitted transverse locations for arrangements in paragraphs ( 2 )( c ) , ( d ) and ( f ) above, where appropriate : ( i ) at or near the centre line of the ship; or fitted on hatchways at or near the centre line of the ship; ( ii ) fitted on each side of the ship; ( iii ) fitted on one side of the ship, provision being made for fitting on either side; ( iv ) fitted on one side of the ship only; ( v ) fitted on each side of the hatchways, as near to the centre line as practicable . ( 4 ) ( a ) Where wire ropes are fit ted, turnbuckles shall be provided to ensure their tautness . ( b ) Where necessary for the normal operation of the ship, steel wire ropes may be accepted in lieu of guard rails . ( c ) Where necessary for the normal operation of the ship, chains fitted between two fixed stanchions are acceptable in lieu of guard rails . ( d ) Where stanchions are fitted, every third stanchion shall be supported by a bracket or stay . ( e ) Removable or hinged stanchions shall be capable of being locked in the upright position . ( f ) A means of passage over obstructions such as pipes or other fittings of a permanent nature, shall be provided . ( g ) Generally, the width of the gangway or deck - level walkway should not exceed 1 . 5 m . ( 5 ) For tankers less than 100 m in length, the minimum width of the gangway platform or deck - level walkway fitted in accordance with paragraphs ( 2 )( e ) or ( f ) above, respectively, may be reduced to 0 . 6 m . Regulation 26 Special conditions of assignment for type ‘A’ ships Machinery casings ( 1 ) Machinery casings on ty pe ‘A’ ships, as defined in regulation 27, shall be protected by one of the following arrangements : ( a ) an enclosed poop or bridge of at least standard height; or ( b ) a deckhouse of equal height and equivalent strength . ( 2 ) Machinery casings may, however, be exposed if there are no openings giving direct access from the freeboard deck to the machinery space . A door complying with the requirements of regulation 12 is acceptable in the machinery casing, provided that it leads to a space or

• 37 - passageway which is as strongly constructed as the casing and is separated from the stairway to the engine - room by a second weathertight door of steel or other equivalent material . Gangway and access ( 3 ) A fore and aft permanent gangway, constructed in accordance with the provisions of regulation 25 - 1 ( 2 )( e ) , shall be fitted on type ‘A’ ships at the level of the superstructure deck between the poop and the midship bridge or deckhouse where fitted . The arrangement contained in regulation 25 - 1 ( 2 )( a ) is considered an equivalent means of access to carry out the purpose of the gangway . ( 4 ) Safe access from the gangway level shall be available between separate crew accommodations and also between crew accommodations and the machinery space . Hatchways ( 5 ) Exposed hatchways on the fr eeboard and forecastle decks or on the tops of expansion trunks on type ‘A’ ships shall be provided with efficient watertight covers of steel or other equivalent material . Freeing arrangements ( 6 ) Type ‘A’ ships with bulwarks shall have open rails fitted f or at least half the length of the weather deck or other equivalent freeing arrangements . A freeing port area, in the lower part of the bulwarks, of 33 % of the total area of the bulwarks, is an acceptable equivalent freeing arrangement . The upper edge of t he sheer strake shall be kept as low as practicable . ( 7 ) Where superstructures are connected by trunks, open rails shall be fitted for the whole length of the exposed parts of the freeboard deck . CHAPTER III FREEBOARDS Regulation 27 Types of ships ( 1 ) For the purposes of freeboard computation, ships shall be divided into type ‘A’ and type ’ B ’. Type ’ A ’ ships ( 2 ) A type ’ A ’ ship is one which : ( a ) is designed to carry only liquid cargoes in bulk; ( b ) has a high integrity of the exposed deck with only small access openings to cargo compartments, closed by watertight gasketed covers of steel or equivalent material; and ( c ) has low permeability of loaded cargo compartments .

• 38 - ( 3 ) A type ‘A’ ship, if over 150 m in length, to which a freeboard less than type ’ B ’ has been assigned, when loaded in accordance with the requirements of paragraph ( 11 ) , shall be able to withstand the flooding of any compartment or compartments, with an assumed permeability of 0 . 95, consequent upon the damage assumptions specified in paragraph ( 12 ) , and shall remain afloat in a satisfactory condition of equilibrium, as specified in paragraph ( 13 ). In such a ship, the machinery space shall be treated as a floodable compartment, but with a permeability of 0 . 85 . ( 4 ) A type ‘A’ ship shall be assigned a freeboard not less than that based on table 28 . 1 . Type ‘B’ ships ( 5 ) All ships which do not come within the provisions regarding type ‘A’ ships in paragraphs ( 2 ) and ( 3 ) shall be considered as type ‘B’ ships . ( 6 ) Type ‘B’ ships, which in pos ition 1 have hatch covers which are permitted by the Administration to comply with the requirements of regulation 15 ( other than paragraph ( 6 )) or which are fitted with securing arrangements accepted under the provisions of regulation 16 ( 6 ) , shall be assig ned freeboards based upon the values given in table 28 . 2, increased by the values given in table 27 . 1 : Freeboard increase over tabular freeboard for type ‘B’ ships, for ships with hatch covers complying with the provisions of regulation 15 ( other than para graph ( 6 )) Length of ship ( m ) Freeboard Increase ( mm ) Length of ship ( m ) Freeboard Increase ( mm ) Length of ship ( m ) Freeboard Increase ( mm ) 108 and below 109 110 111 112 113 114 115 116 117 118 119 50 52 55 57 59 62 64 68 70 73 76 80 139 140 141 142 143 144 145 146 147 148 149 150 175 181 186 191 196 201 206 210 215 219 224 228 170 171 172 173 174 175 176 177 178 179 180 181 290 292 294 297 299 301 304 306 308 311 313 315

• 39 - 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 84 87 91 95 99 103 108 112 116 121 126 131 136 142 147 153 159 164 170 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 232 236 240 244 247 251 254 258 261 264 267 270 273 275 278 280 283 285 287 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 318 320 322 325 327 329 332 334 336 339 341 343 346 348 350 353 355 357 358 Freeboards at intermediate lengths of ship shall be obtained by linear interpolation . Ships above 200m in length shall be dealt with by the Administration . Table 27 . 1 ( 7 ) Type ‘B’ ships, which in position 1 have hatchways fitted with hatch covers complying with the requirements of regulation 16 ( 2 ) through ( 5 ) , shall, except as provided in paragraphs ( 8 ) to ( 13 ) inclusive, be assigned freeboards based on table 28 . 2 . ( 8 ) Any type ‘B’ ship of over 100 m in length may be assigned freeboards less than those required under paragraph ( 7 ) , provided that, in relation to the amount of reduction granted, the Administration is satisfied t hat : ( a ) the measures provided for the protection of the crew are adequate; ( b ) the freeing arrangements are adequate;

• 40 - ( c ) the covers in position 1 and 2 comply with the provisions of regulation 16 ( 1 ) through ( 5 ) and ( 7 ) ; and ( d ) the ship, when loaded in a ccordance with the requirements of paragraph ( 11 ) , shall be able to withstand the flooding of any compartment or compartments, with an assumed permeability of 0 . 95, consequent upon the damage assumptions specified in paragraph ( 12 ) , and shall remain afloat in a satisfactory condition of equilibrium, as specified in paragraph ( 13 ). In such a ship, if over 150 m in length, the machinery space shall be treated as a floodable compartment, but with a permeability of 0 . 85 . ( 9 ) In calculating the freeboards for t ype ’ B ’ ships which comply with the requirements of paragraphs ( 8 ) , ( 11 ) , ( 12 ) and ( 13 ) , the values from table 28 . 2 shall not be reduced by more than 60 % of the difference between the tabular values in tables 28 . 1 and 28 . 2 for the appropriate ship lengths . ( 10 ) ( a ) The reduction in tabular freeboard allowed under paragraph ( 9 ) may be increased up to the total difference between the values in table 28 . 1 and those in table 28 . 2 on condition that the ship complies with the requirements of : ( i ) regulation 26, o ther than paragraph ( 5 ) , as if it were a type ‘A’ ship; ( ii ) paragraphs ( 8 ) , ( 11 ) and ( 13 ) ; and ( iii ) paragraph ( 12 ) , provided that throughout the length of the ship any one transverse bulkhead will be assumed to be damaged, such that two adjacent fore and aft compartments shall be flooded simultaneously, except that such damage will not apply to the boundary bulkheads of a machinery space . ( b ) In such a ship, if over 150 m in length, the machinery space shall be treated as a floodable compartment, but with a permeability of 0 . 85 . Initial condition of loading ( 11 ) The initial condition of loading before flooding shall be determined as follows : ( a ) The ship is loaded to its summer load waterline on an imaginary even keel . ( b ) When calculating the vertical centre of gravity, the following principles apply : ( i ) homogeneous cargo is carried; ( ii ) all cargo compartments, except those referred to under subparagraph ( iii ) , but including compartments intended to be partially filled, shall be considered fully loade d except that in the case of fluid cargoes each compartment shall be treated as 98 % full; ( iii ) if the ship is intended to operate at its summer load waterline with empty compartments, such compartments shall be considered empty, provided the height of the centre of gravity so calculated is not less than as calculated under subparagraph ( ii ) ;

• 41 - ( iv ) 50 per cent of the ship’s total capacity of tanks and spaces fitted to contain each type of consumables and stores is allowed for . It shall be assumed that for ea ch type of liquid at least one transverse pair or a single centreline tank has maximum free surface, and the tank or combination of tanks to be taken into account shall be those where the effect of free surfaces is the greatest; in each tank the centre of gravity of the contents shall be taken at the centre of volume of the tank . The remaining tanks shall be assumed either completely empty or completely filled, and the distribution of consumable liquids between these tanks shall be effected so as to obtain the greatest possible height above the keel for the centre of gravity; ( v ) Ballast water tanks shall normally be considered to be empty and no free surface correction shall be made for them . ( vi ) Alternative treatment for free surface may be considered wh en developing the final condition for application of damage specified in regulation 27 ( 12 ): ( aa ) Method 1 ( appropriate to virtual corrections ). The virtual centre of gravity for the initial condition is determined as follows : i . the loading condition shall be developed in accordance with paragraphs ( i ) to ( iv ) ; ii . the correction for the free surfaces is added to the vertical centre of gravity; iii . one virtual initial condition with all compartments empty is generated on summer load line draught with level trim, using the vertical centre of gravity from the above loading condition; and iv . the damage cases will be checked for compliance with the damage stability criteria using the above initial condition . ( bb ) Method 2 ( appropriate to the use of actual free surface moments according to the assumed tank fillings for damage case ). The virtual centre of gravity for the initial condition is determined as follows : i . the loading condition shall be developed in accordance with paragraphs ( i ) to ( iv ) ; ii . one virtual initial condition for each damage case with liquid - filled compartments may be generated on summer load line draught with level trim, using the initial virtual condition with filled compartments generated on summer load line draught with lev el trim . Using the vertical centre of gravity and free surface correction from the above loading condition separate calculations for each damage case are performed, only the liquid - filled compartments to be damaged are left empty before damage; and

• 42 - iii . th e damage cases will be checked for compliance with the damage stability criteria using above initial conditions ( one initial condition for each damage case ). ( vii ) weights shall be calculated on the basis of the following values for specific gravities : sal t water 1 . 025 fresh water 1 . 000 oil fuel 0 . 950 diesel oil 0 . 900 lubricating oil 0 . 900 . Damage assumptions ( 12 ) The following principles regarding the character of t he assumed damage apply : ( a ) The vertical extent of damage in all cases is assumed to be from the base line upwards without limit . ( b ) The transverse extent of damage is equal to B / 5 or 11 . 5 m, whichever is the lesser, measured inboard from the side of the ship perpendicularly to the centreline at the level of the summer load waterline . ( c ) If damage of a lesser extent than specified in subparagraphs ( a ) and ( b ) results in a more severe condition, such lesser extent shall be assumed . ( d ) Except where otherw ise required by paragraph ( 10 )( a ) , the flooding shall be confined to a single compartment between adjacent transverse bulkheads, provided that the inner longitudinal boundary of the compartment is not in a position within the transverse extent of assumed d amage . Transverse boundary bulkheads of wing tanks, which do not extend over the full breadth of the ship shall be assumed not to be damaged, provided that they extend beyond the transverse extent of assumed damage prescribed in subparagraph ( b ). If in a t ransverse bulkhead there are steps or recesses of not more than 3 m in length, located within the transverse extent of assumed damage as defined in subparagraph ( b ) , such transverse bulkhead may be considered intact and the adjacent compartment may be floo dable singly . If, however, within the transverse extent of assumed damage there is a step or recess of more than 3 m in length in a transverse bulkhead, the two compartments adjacent to this bulkhead shall be considered as flooded . The step formed by the a fterpeak bulkhead and the afterpeak tank top shall not be regarded as a step for the purpose of this regulation . ( e ) Where a main transverse bulkhead is located within the transverse extent of assumed damage and is stepped in way of a double bottom or side tank by more than 3 m, the double bottom or side tanks adjacent to the stepped portion of the main transverse bulkhead shall be considered as flooded simultaneously . If this side tank has openings into

• 43 - one or several holds, such as grain feeding holes, su ch hold or holds shall be considered as flooded simultaneously . Similarly, in a ship designed for the carriage of fluid cargoes, if a side tank has openings into adjacent compartments, such adjacent compartments shall be considered as empty and as being fl ooded simultaneously . This provision is applicable even where such openings are fitted with closing appliances, except in the case of sluice valves fitted in bulkheads between tanks and where the valves are controlled from the deck . Manhole covers with clo sely spaced bolts are considered equivalent to the unpierced bulkhead, except in the case of openings in topside tanks making the topside tanks common to the holds . ( f ) Where the flooding of any two adjacent fore and aft compartments is envisaged, main tra nsverse watertight bulkheads shall be spaced at least or 14 . 5 m, whichever is the lesser, in order to be considered effective . Where transverse bulkheads are spaced at a lesser distance, one or more of these bulkheads shall be assumed as non - existent in order to achieve the minimum spacing between bulkheads . Condition of equilibrium ( 13 ) The condition of equilibrium after flooding shall be regarded as satisfactory provided : ( a ) The final waterline after flooding, taking into account sinkage, heel and trim, is below the lower edge of any opening through which progressive downflooding may take place . Such openings shall include air pipes, ventilators ( even if they comply with regulation 19 ( 4 )) and openings which are closed by means of weathertight doors ( even if they comply with regulation 12 ) or hatch covers ( even if they comply with regulation 16 ( 1 ) through ( 5 )) , and may exclude those openings closed by means of manhole covers and flush scuttles ( which comply with regulation 18 ) , cargo hatch covers of t he type described in regulation 27 ( 2 ) , remotely operated sliding watertight doors, and sidescuttles of the non - opening type ( which comply with regulation 23 ). However, in the case of doors separating a main machinery space from a steering gear compartment, watertight doors may be of a hinged, quick - acting type kept closed at sea whilst not in use, provided also that the lower sill of such doors is above the summer load waterline . ( b ) If pipes, ducts or tunnels are situated within the assumed extent of damage penetration as defined in paragraph ( 12 )( b ) , arrangements shall be made so that progressive flooding cannot thereby extend to compartments other than those assumed to be floodable in the calculation for each case of damage . ( c ) The angle of heel due to unsymmetrical flooding does not exceed 15° . If no part of the deck is immersed, an angle of heel of up to 17° may be accepted . ( d ) The metacentric height in the flooded condition is positive .

• 44 - ( e ) When any part of the deck outside the compartment assume d flooded in a particular case of damage is immersed, or in any case where the margin of stability in the flooded condition may be considered doubtful, the residual stability is to be investigated . It may be regarded as sufficient if the righting lever cur ve has a minimum range of 20° beyond the position of equilibrium with a maximum righting lever of at least 0 . 1 m within this range . The area under the righting lever curve within this range shall be not less than 0 . 0175 m . rad . The Administration shall give consideration to the potential hazard presented by protected or unprotected openings which may become temporarily immersed within the range of residual stability . ( f ) The Administration is satisfied that the stability is sufficient during intermediate st ages of flooding . ( g ) Compliance with the residual stability criteria specified in paragraphs ( a ) , ( c ) , ( d ) and ( e ) above is not required to be demonstrated in service loading conditions using a stability instrument, stability software or other approved me thod . Ships without means of propulsion ( 14 ) A lighter, barge or other ship without independent means of propulsion shall be assigned a freeboard in accordance with the provisions of these regulations . Barges which meet the requirements of paragraphs ( 2 ) and ( 3 ) may be assigned type ‘A’ freeboards : ( a ) The Administration should especially consider the stability of barges with cargo on the weather deck . Deck cargo can only be carried on barges to which the ordinary type ‘B’ freeboard is assigned . ( b ) Howeve r, in the case of barges which are unmanned, the requirements of regulations 25, 26 ( 3 ) , 26 ( 4 ) and 39 shall not apply . ( c ) Such unmanned barges which have on the freeboard deck only small access openings closed by watertight gasketed covers of steel or equi valent material may be assigned a freeboard 25 % less than those calculated in accordance with these regulations . Regulation 28 Freeboard tables Type ‘A’ ships (1) The tabular freeboard for type ‘A’ ships shall be determined from table 28 . 1 :

• 45 - Table 28 . 1 - Freeboard table for type ‘A’ ships Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 24 200 51 455 78 814 25 208 52 467 79 828 26 217 53 478 80 841 27 225 54 490 81 855 28 233 55 503 82 869 29 242 56 516 83 883 30 250 57 530 84 897 31 258 58 544 85 911 32 267 59 559 86 926 33 275 60 573 87 940 34 283 61 587 88 955 35 292 62 600 89 969 36 300 63 613 90 984 37 308 64 626 91 999 38 316 65 639 92 1014 39 325 66 653 93 1029 40 334 67 666 94 1044 41 344 68 680 95 1059 42 354 69 693 96 1074 43 364 70 706 97 1089 44 374 71 720 98 1105 45 385 72 733 99 1120 46 396 73 746 100 1135 47 408 74 760 101 1151 48 420 75 773 102 1166 49 432 76 786 103 1181 50 443 77 800 104 1196

• 46 - Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 105 1212 168 2240 231 2880 106 1228 169 2254 232 2888 107 1244 170 2268 233 2895 108 1260 171 2281 234 2903 109 1276 172 2294 235 2910 110 1293 173 2307 236 2918 111 1309 174 2320 237 2925 112 1326 175 2332 238 2932 113 1342 176 2345 239 2939 114 1359 177 2357 240 2946 115 1376 178 2369 241 2953 116 1392 179 2381 242 2959 117 1409 180 2393 243 2966 118 1426 181 2405 244 2973 119 1442 182 2416 245 2979 120 1459 183 2428 246 2986 121 1476 184 2440 247 2993 122 1494 185 2451 248 3000 123 1511 186 2463 249 3006 124 1528 187 2474 250 3012 125 1546 188 2486 251 3018 126 1563 189 2497 252 3024 127 1580 190 2508 253 3030 128 1598 191 2519 254 3036 129 1615 192 2530 255 3042 130 1632 193 2541 256 3048 131 1650 194 2552 257 3054 132 1667 195 2562 258 3060 133 1684 196 2572 259 3066 134 1702 197 2582 260 3072 135 1719 198 2592 261 3078

• 47 - Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 136 1736 199 2602 262 3084 137 1753 200 2612 263 3089 138 1770 201 2622 264 3095 139 1787 202 2632 265 3101 140 1803 203 2641 266 3106 141 1820 204 2650 267 3112 142 1837 205 2659 268 3117 143 1853 206 2669 269 3123 144 1870 207 2678 270 3128 145 1886 208 2687 271 3133 146 1903 209 2696 272 3138 147 1919 210 2705 273 3143 148 1935 211 2714 274 3148 149 1952 212 2723 275 3153 150 1968 213 2732 276 3158 151 1984 214 2741 277 3163 152 2000 215 2749 278 3167 153 2016 216 2758 279 3172 154 2032 217 2767 280 3176 155 2048 218 2775 281 3181 156 2064 219 2784 282 3185 157 2080 220 2792 283 3189 158 2096 221 2801 284 3194 159 2111 222 2809 285 3198 160 2126 223 2817 286 3202 161 2141 224 2825 287 3207 162 2155 225 2833 288 3211 163 2169 226 2841 289 3215 164 2184 227 2849 290 3220 165 2198 228 2857 291 3224 166 2212 229 2865 292 3228 167 2226 230 2872 293 3233

• 48 - Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 294 3237 318 3325 342 3387 295 3241 319 3328 343 3389 296 3246 320 3331 344 3392 297 3250 321 3334 345 3394 298 3254 322 3337 346 3396 299 3258 323 3339 347 3399 300 3262 324 3342 348 3401 301 3266 325 3345 349 3403 302 3270 326 3347 350 3406 303 3274 327 3350 351 3408 304 3278 328 3353 352 3410 305 3281 329 3355 353 3412 306 3285 330 3358 354 3414 307 3288 331 3361 355 3416 308 3292 332 3363 356 3418 309 3295 333 3366 357 3420 310 3298 334 3368 358 3422 311 3302 335 3371 359 3423 312 3305 336 3373 360 3425 313 3308 337 3375 361 3427 314 3312 338 3378 362 3428 315 3315 339 3380 363 3430 316 3318 340 3382 364 3432 317 3322 341 3385 365 3433 Freeboards at intermediate lengths of ship shall be ob tained by linear interpolation . Ships above 365 m in length shall be dealt with by the Administration .

• 49 - Type ‘B’ ships ( 2 ) The tabular freeboard for type ‘B’ ships shall be determined from table 28 . 2 : Table 28 . 2 - Freeboard table for type ‘B’ ships Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 24 200 70 721 116 1609 25 208 71 738 117 1630 26 217 72 754 118 1651 27 225 73 769 119 1671 28 233 74 784 120 1690 29 242 75 800 121 1709 30 250 76 816 122 1729 31 258 77 833 123 1750 32 267 78 850 124 1771 33 275 79 868 125 1793 34 283 80 887 126 1815 35 292 81 905 127 1837 36 300 82 923 128 1859 37 308 83 942 129 1880 38 316 84 960 130 1901 39 325 85 978 131 1921 40 334 86 996 132 1940 41 344 87 1015 133 1959 42 354 88 1034 134 1979 43 364 89 1054 135 2000 44 374 90 1075 136 2021 45 385 91 1096 137 2043 46 396 92 1116 138 2065 47 408 93 1135 139 2087 48 420 94 1154 140 2109 49 432 95 1172 141 2130 50 443 96 1190 142 2151 51 455 97 1209 143 2171 52 467 98 1229 144 2190

• 50 - Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 53 478 99 1250 145 2209 54 490 100 1271 146 2229 55 503 101 1293 147 2250 56 516 102 1315 148 2271 57 530 103 1337 149 2293 58 544 104 1359 150 2315 59 559 105 1380 151 2334 60 573 106 1401 152 2354 61 587 107 1421 153 2375 62 601 108 1440 154 2396 63 615 109 1459 155 2418 64 629 110 1479 156 2440 65 644 111 1500 157 2460 66 659 112 1521 158 2480 67 674 113 1543 159 2500 68 689 114 1565 160 2520 69 705 115 1587 161 2540 162 2560 225 3660 288 4490 163 2580 226 3675 289 4502 164 2600 227 3690 290 4513 165 2620 228 3705 291 4525 166 2640 229 3720 292 4537 167 2660 230 3735 293 4548 168 2680 231 3750 294 4560 169 2698 232 3765 295 4572 170 2716 233 3780 296 4583 171 2735 234 3795 297 4595 172 2754 235 3808 298 4607 173 2774 236 3821 299 4618 174 2795 237 3835 300 4630 175 2815 238 3849 301 4642 176 2835 239 3864 302 4654

• 51 - Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 177 2855 240 3880 303 4665 178 2875 241 3893 304 4676 179 2895 242 3906 305 4686 180 2915 243 3920 306 4695 181 2933 244 3934 307 4704 182 2952 245 3949 308 4714 183 2970 246 3965 309 4725 184 2988 247 3978 310 4736 185 3007 248 3992 311 4748 186 3025 249 4005 312 4757 187 3044 250 4018 313 4768 188 3062 251 4032 314 4779 189 3080 252 4045 315 4790 190 3098 253 4058 316 4801 191 3116 254 4072 317 4812 192 3134 255 4085 318 4823 193 3151 256 4098 319 4834 194 3167 257 4112 320 4844 195 3185 258 4125 321 4855 196 3202 259 4139 322 4866 197 3219 260 4152 323 4878 198 3235 261 4165 324 4890 199 3249 262 4177 325 4899 200 3264 263 4189 326 4909 201 3280 264 4201 327 4920 202 3296 265 4214 328 4931 203 3313 266 4227 329 4943 204 3330 267 4240 330 4955 205 3347 268 4252 331 4965 206 3363 269 4264 332 4975 207 3380 270 4276 333 4985 208 3397 271 4289 334 4995

• 52 - Length of ship Freeboard Length of ship Freeboard Length of ship Freeboard ( m ) ( mm ) ( m ) ( mm ) ( m ) ( mm ) 209 3413 272 4302 335 5005 210 3430 273 4315 336 5015 211 3445 274 4327 337 5025 212 3460 275 4339 338 5035 213 3475 276 4350 339 5045 214 3490 277 4362 340 5055 215 3505 278 4373 341 5065 216 3520 279 4385 342 5075 217 3537 280 4397 343 5086 218 3554 281 4408 344 5097 219 3570 282 4420 345 5108 220 3586 283 4432 346 5119 221 3601 284 4443 347 5130 222 3615 285 4455 348 5140 223 3630 286 4467 349 5150 224 3645 287 4478 350 5160 351 5170 356 5220 361 5268 352 5180 357 5230 362 5276 353 5190 358 5240 363 5285 354 5200 359 5250 364 5294 355 5210 360 5260 365 5303 Freeboards at intermediate lengths of ship shall be obtained by linear interpolation . Ships above 365 m in length shall be dealt with by the Administration . Regulation 29 Correction to the freeboard for ships under 100 m in length The tabular freeboard for a type ‘B’ ship of between 24 m and 100 m in length having enclosed superstructures with an effective length of up to 35 % of the length of the ship shall be increased by :

• 53 - 7 . 5 ( 100 - L ) ( 0 . 35 - E 1 / L ) ( MM ) where L is the length of the ship in m; and E 1 is the effective length E of superstructure in m as defined in regulation 35, but excluding the length of trunks . Regula tion 30 Correction for block coefficient Where the block coefficient ( Cb ) exceeds 0 . 68, the tabular freeboard specified in regulation 28 as modified, if applicable, by regulations 27 ( 8 ) , 27 ( 10 ) and 29 shall be multiplied by the factor : The block coefficient is not to be taken greater than 1 . 0 . Regulation 31 Correction for depth ( 1 ) Where D exceeds L / 15 the freeboard shall be increased by ( D - L / 15 ) R mm, where R is L / 0 . 48 at lengths less than 120 m and 250 at 120 m length and above . ( 2 ) Where D is less than L / 15 no reduction shall be made, except in a ship with an enclosed superstructure covering at least 0 . 6L amidships, with a complete trunk, or combination of detached enclosed superstructures and trunks which extend all fore and aft, where the fr eeboard shall be reduced at the rate prescribed in paragraph ( 1 ). ( 3 ) Where the height of the superstructure or trunk is less than the corresponding standard height, the calculated reduction shall be corrected in the ratio of the height of the actual super structure or trunk to the applicable standard height, as defined in regulation 33 . Regulation 32 Correction for position of deck line Where the actual depth to the upper edge of the deck line is greater or less than D, the difference between the depths sh all be added to or deducted from the freeboard . Regulation 32 - 1 Correction for recess in freeboard deck ( 1 ) Where a recess is arranged in the freeboard deck, and it does not extend to the sides of the ship, the freeboard calculated without regard to the r ecess shall be corrected for the

• 54 - consequent loss of buoyancy . The correction shall be equal to the value obtained by dividing the volume of the recess by the waterplane area of the ship at 85 % of the least moulded depth ( see figure 32 - 1 . 1 ). ( 2 ) The correct ion shall be an addition to the freeboard obtained after all other corrections have been applied, except bow height correction . ( 3 ) Where the freeboard, corrected for lost buoyancy as above, is greater than the minimum geometric freeboard determined on the basis of a moulded depth measured to the bottom of the recess, the latter value may be used . Figure 32 - 1 . 1 Correction is the addition to freeboard equal to : Regulation 33 Standard height of superstructure The standard height of a superstructure shall be as given in the following table : Standard Height ( m ) L ( metes ) Raised Quarter Deck All other Superstructures 30 or less 75 125 or more 0 . 90 1 . 20 1 . 80 1 . 80 1 . 80 2 . 30

• 55 - Table 33 . 1 The standard heights at intermediate lengths of the ship shall be obtained by linear interpolation . Regulation 34 Length of superstructure ( 1 ) Except as provided in paragraph ( 2 ) , the length of a superstructure ( S ) shall be the mean length of the parts of the superstructure which lie within the length ( L ). Where a superstructure bulkhead is recessed, the effective length of the superstructure shall be reduced by an amount equal to the area of the r ecess in plan view divided by the breadth of the superstructure at the midlength of the recess . Where the recess is unsymmetrical about the centreline, the largest portion of the recess shall be considered as applying to both sides of the ship . A recess ne ed not be decked over . ( 2 ) Where the end bulkhead of an enclosed superstructure extends in a fair convex curve beyond its intersection with the superstructure sides, the length of the superstructure may be increased on the basis of an equivalent plane bulkhead . This increase shall be two - thirds of the fore and aft extent of the curvature . The maximum curvature which may be taken into account in determining this increase is one - half the breadth of the superstructure at the point of intersection of the curved end of the superstructure with its side . Where there is an extension to a superstructure, which extension has a breadth on each side of the centre line at least 30 % of the breadth of the ship, the effective length of the superstructure may be increased by considering an equivalent superstructure bulkhead in the form of a parabola . This parabola shall extend from the extension at the centreline and pass through the junction of the a ctual superstructure bulkhead with the sides of the extension and extend to the sides of the ship . This parabola shall be completely contained within the boundary of the superstructure and its extensions . If the superstructure is set - in from the side, up t o the limit allowed under regulation 3 ( 10 ) , the equivalent bulkhead should be calculated on the basis of the actual breadth of the superstructure ( and not the breadth of the ship ). ( 3 ) Superstructures which have sloped end bulkheads shall be dealt with in the following manner : ( a ) When the height of superstructure, clear of the slope, is equal to or smaller than the standard height, length S is to be obtained as shown in figure 34 . 1 .

• 56 - ( b ) When the height is greater than the standard, length S is to be obtain ed as shown in figure 34 . 2 . ( c ) The foregoing will apply only when the slope, related to the base line, is 15° or greater . Where the slope is less than 15°, the configuration shall be treated as sheer . Figure 34 . 1 - Height of superstructure equal to or s maller than the standard height h Figure 34 . 2 - Height of superstructure greater than the standard height Regulation 35 Effective length of superstructure ( 1 ) Except as provided for in paragraph ( 2 ) , the effective length ( E ) of an enclosed superstructu re of standard height shall be its length . ( 2 ) In all cases where an enclosed superstructure of standard height is set - in from the sides of the ship as permitted in regulation 3 ( 10 ) , the effective length shall be the length modified by the ratio of b / Bs, w here :

• 57 - b is the breadth of the superstructure at the middle of its length; and Bs is the breadth of the ship at the middle of the length of the superstructure . Where a superstructure is set - in for a part of its length, this modification shall be applied onl y to the set - in part . ( 3 ) Where the height of an enclosed superstructure is less than the standard height, the effective length shall be its length reduced in the ratio of the actual height to the standard height . Where the height exceeds the standard, no increase shall be made to the effective length of the superstructure ( see figures 34 . 1 and 34 . 2 ). Where the height, clear of the slope, of a superstructure which has sloped end bulkheads is less than the standard height, its effective length E shall be its length S as obtained from figure 34 . 1, reduced in the ratio of the actual height to the standard height . Where a poop or forecastle of less than standard height is fitted on a ship with excessive sheer but without any superstructure within 0 . 2L amidships, credit may be given to the height of the poop or forecastle by increasing the actual height by the difference between the actual and the standard sheer profiles . The deduction for excess sheer in accordance with regulation 38 ( 16 ) is not to be granted . ( 4 ) The effective length of a raised quarter deck, if fitted with an intact front bulkhead, shall be its length up to a maximum of 0 . 6L . Where the bulkhead is not intact, the raised quarter deck shall be treated as a poop of less than standard height . The maximum effective length of 0 . 6L of a raised quarterdeck is to be measured from the after perpendicular, even where a poop is fitted in conjunction with the raised quarterdeck . ( 5 ) Superstructures which are not enclosed shall have no effective length . Re gulation 36 Trunks ( 1 ) A trunk or similar structure which does not extend to the sides of the ship shall be regarded as efficient on the following conditions : ( a ) the trunk is at least as strong as a superstructure; ( b ) the hatchways are in the trunk deck, the hatchway coamings and covers comply with the requirements of regulations 13 to 16 inclusive and the width of the trunk deck stringer provides a satisfactory gangway and sufficient lateral stiffness . However, small access openings with watertight cover s may be permitted in the freeboard deck; ( c ) a permanent working platform fore and aft fitted with guard rails is provided by the trunk deck, or by detached trunks connected to superstructures by efficient permanent gangways;

• 58 - ( d ) ventilators are protected by the trunk, by watertight covers or by other equivalent means; ( e ) open rails are fitted on the weather parts of the freeboard deck in way of the trunk for at least half their length or, alternatively, freeing port area in the lower part of the bulwarks , subject to regulation 24 ( 2 ) , of 33 % of the total area of the bulwarks is provided; ( f ) the machinery casings are protected by the trunk, by a superstructure of at least standard height, or by a deckhouse of the same height and of equivalent strength; ( g ) the breadth of the trunk is at least 60 % of the breadth of the ship; and ( h ) where there is no superstructure, the length of the trunk is at least 0 . 6L . ( 2 ) The full length of an efficient trunk reduced in the ratio of its mean breadth to B shall be its e ffective length . ( 3 ) The standard height of a trunk is the standard height of a superstructure other than a raised quarter deck . ( 4 ) Where the height of a trunk is less than the standard height, its effective length shall be reduced in the ratio of the act ual to the standard height . Where the height of hatchway coamings on the trunk deck is less than that required under regulation 14 - 1, a reduction from the actual height of trunk shall be made which corresponds to the difference between the actual and the r equired height of coaming . ( 5 ) Where the trunk height is less than standard and the trunk hatch coamings are also of less than standard height, or omitted entirely, the reduction from the actual height of trunk on account of insufficient hatch coaming heig ht shall be taken as the difference between 600 mm and the actual height of coaming, or 600 mm if no hatch coamings are fitted . Reduction in the actual height of trunk shall not be required in cases where only small hatches with less than standard height a re fitted in the trunk deck for which dispensation from the requirement of standard coaming height may be given . ( 6 ) Continuous hatchways may be treated as a trunk in the freeboard computation, provided the provisions of this paragraph are complied with in all respects . The trunk deck stringer referred to in paragraph ( 1 )( b ) may be fitted outboard of the trunk side bulkhead in association with the following : ( a ) the stringer so formed is to provide a clear walkway of at least 450 mm in width on each side of the ship; ( b ) the stringer is to be of solid plate, efficiently supported and stiffened; ( c ) the stringer is to be as high above the freeboard deck as practicable . In the freeboard calculation, the trunk height is to be reduced by at least 600 mm or by the actual difference between the top of the trunk and the stringer, whichever is greater;

• 59 - ( d ) hatch cover securing appliances are to be accessible from the stringer or walkway; and ( e ) the breadth of the trunk is to be measured between the trunk side bulk heads . ( 7 ) Where the trunk adjoining the superstructures such as poop, bridge or forecastle is included in the calculation of freeboard, openings shall not be arranged in that part of the bulkhead which is common for the trunk and superstructure . A relaxa tion may be made for small openings such as for piping, cable or manholes with covers attached by means of bolts . ( 8 ) The sides of a trunk included in the calculation of freeboard shall be intact . Side scuttles of the non - opening type and bolted manhole co vers may be allowed . Regulation 37 Deduction for superstructures and trunks ( 1 ) Where the effective length of superstructures and trunks is 1L, the deduction from the freeboard shall be 350 mm at 24 m length of ship, 860 mm at 85 m length and 1,070 mm at 122 m length and above . Deductions at intermediate lengths shall be obtained by linear interpolation . ( 2 ) Where the total effective length of superstructures and trunks is less than 1L, the deduction shall be a percentage obtained from the following table : Percentage of deduction for type ‘A’ and ‘B’ ships Total Effective of Superstructures and Trunks 0 0 . 1 L 0 . 2 L 0 . 3 L 0 . 4 L 0 . 5 L 0 . 6 L 0 . 7 L 0 . 8 L 0 . 9 L 1 . 0 L Percentage of deduction for of superstructures 0 7 14 21 31 41 52 63 75 . 3 87 . 7 100 Table 37 . 1 Percentages at intermediate lengths of superstructures and trunks shall be obtained by linear interpolation . ( 3 ) For ships of type ‘B’ where the effective length of a forecastle is less than 0 . 07L no deduction is allowed . Regulation 38 Sheer General ( 1 ) The sheer shall be measured from the deck at side to a line of reference drawn parallel to the keel through the sheer line amidships .

• 60 - ( 2 ) In ships designed with a rake of keel, the sheer shall be measured in relation to a reference line drawn parallel to the design load waterline . ( 3 ) In flush deck ships and in ships with detached superstructures the sheer shall be measured at the freeboard deck . ( 4 ) In ships with topsides of unusual form in which there is a step or break in the topsides, the sheer shall be considered in relation to the equivalent depth amidships . ( 5 ) In ships with a superstructure of standard height which extends over the whole length of the freeboard deck, the sheer shall be measu red at the superstructure deck . Where the height exceeds the standard, the least difference ( Z ) between the actual and standard heights shall be added to each end ordinate . Similarly, the intermediate ordinates at distances of 1 / 6L and 1 / 3L from each perpe ndicular shall be increased by 0 . 444Z and 0 . 111Z, respectively . Where there is an enclosed poop or forecastle superimposed on the superstructure, sheer credit shall be allowed for such a poop or forecastle, according to the method of paragraph ( 12 ) as show n in figure 38 . 1 . Figure 38 . 1 ( 6 ) Where the deck of an enclosed superstructure has at least the same sheer as the exposed freeboard deck, the sheer of the enclosed portion of the freeboard deck shall not be taken into account . ( 7 ) Where an enclosed poop or forecastle is of standard height with greater sheer than that of the freeboard deck, or is of more than standard height, an addition to the sheer of the freeboard deck shall be made as provided in paragraph ( 12 ). Where a poop or forecastle consists of t wo layers, the method shown in figure 38 . 2 shall be used .

• 61 - Figure 38 . 2 In figures 38 . 1and 38 . 2, the following definitions apply : Z is as defined in paragraph ( 5 ) ; and Zv is the end ordinate of a virtual standard parabolic curve taken through the point ” X “. If Zv is greater than ( Z + h ) , the end ordinate shall be ( Z + h ) , in which case point ” X ” shall be disregarded and curve ( 2 ) not taken into account . When the length of the first tier superstructure is greater than 0 . 5l, the virtual standard parabolic curve shall commence at amidships as indicated in figure 38 . 1 . Standard sheer profile ( 8 ) The ordinates of the standard sheer profile are given in the following table : Standard sheer profile ( where L is in m ) Station Ordinate ( in millimetres ) Factor After half After Perpendicular 1 / 6L from A . P . 1 / 3L from A . P . Amidships 25 ( L / 3 + 10 ) 11 . 1 ( L / 3 + 10 ) 2 . 8 ( L / 3 + 10 ) 0 1 3 3 1 Forward half Amidships 1 / 3 from F . P . 1 / 6 from F . P . 0 5 . 6 ( L / 3 + 10 ) 22 . 2 ( L / 3 + 10 ) 1 3 3

• 62 - Forward perpendicular 50 ( L / 3 + 10 ) 1 Table 38 . 1 Measurement of variation from standard sheer profile ( 9 ) Where the sheer profile differs from the standard, the four ordinates of each profile in the forward or after half shall be multiplied by the appropriate factors given in the above table o f ordinates . The difference between the sums of the respective products and those of the standard divided by 8 measures the deficiency or excess of sheer in the forward or after half . The arithmetical mean of the excess or deficiency in the forward and aft er halves measures the excess or deficiency of sheer . ( 10 ) Where the after half of the sheer profile is greater than the standard and the forward half is less than the standard, no credit shall be allowed for the part in excess and deficiency only shall be measured . ( 11 ) Where the forward half of the sheer profile exceeds the standard, and the after portion of the sheer profile is not less than 75 % of the standard, credit shall be allowed for the part in excess . Where the after part is less than 50 % of the standard no credit shall be given for the excess sheer forward . Where the after sheer is between 50 % and 75 % of the standard, intermediate allowances may be granted for excess sheer forward . ( 12 ) Where sheer credit is given for a poop or forecastle the fol lowing formula shall be used : where : s is the sheer credit, to be deducted from the deficiency, or added to the excess of sheer; y is the difference between actual and standard height of superstructure at the after or forward perpendicular; L ′ is the mean enclosed length of poop or forecastle up to a maximum length of 0 . 5 L; and L is the length of the ship as defined in regulation 3 ( 1 ). The above formula provides a curve in the form of a parabola tangent to the actual sheer curve at the freeboard deck and intersecting the end ordinate at a point below the superstructure deck a distance equal to the standard height of a superstructure . The superstructure deck shall not be less than standard height above this curve at any point . This curve shall be used i n determining the sheer profile for forward and after halves of the ship . ( 13 ) ( a ) Any excess in the height of a superstructure which does not extend to the after perpendicular cannot be regarded as contributing to the sheer allowance .

• 63 - ( b ) Where the height of a superstructure is less than standard, the superstructure deck shall not be less than the minimum height of the superstructure above the virtual shear curve at any point . For this purpose y shall be taken as the difference between the actual and minim um height of the superstructure at the after / forward perpendicular . ( c ) For a raised quarterdeck credit may be given only when the height of this quarterdeck is greater than the standard height of ’ other superstructures ’ as defined in regulation 33, and on ly for the amount by which the actual height of the raised quarterdeck exceeds that standard height . ( d ) When a poop or a forecastle has sloping end bulkheads, the sheer credit may be allowed on account of excess height . The formula given in paragraph ( 12 ) shall be used, the values for y and L ’ being as shown in figure 38 . 3 . Figure 38 . 3 Sheer credit S for excess height Correction for variations from standard sheer profile ( 14 ) The correction for sheer shall be the deficiency or excess of sheer ( see paragraphs ( 9 ) to ( 11 ) inclusive ) , multiplied by where S1 is the total length S of enclosed superstructures as defined in regulation 34 without trunks . Addition for deficiency in sheer ( 15 ) Where the sheer is less than the standard, the correction for de ficiency in sheer ( see paragraph ( 14 )) shall be added to the freeboard . Deduction for excess sheer ( 16 ) In ships where an enclosed superstructure covers 0 . 1L before and 0 . 1L abaft amidships, the correction for excess of sheer as calculated under the provis ions of paragraph ( 14 ) shall be deducted from the freeboard; in ships where no enclosed superstructure covers amidships, no deduction shall be made from the freeboard; where an enclosed superstructure covers less than 0 . 1L before and 0 . 1L abaft amidships, the deduction shall be obtained by linear

• 64 - interpolation . The maximum deduction for excess sheer shall be at the rate of 125 mm per 100 m of length . In applying this paragraph, the height of the superstructure shall be related to its standard height . Where the height of the superstructure or raised quarterdeck is less than standard, the reduction shall be in the ratio of the actual to the standard height thereof . Regulation 39 Minimum bow height and reserve buoyancy ( 1 ) The bow height ( Fb ) , defined as the vertical distance at the forward perpendicular between the waterline corresponding to the assigned summer freeboard and the designed trim and the top of the exposed deck at side, shall be not less than : F b =( 6075 ( L / 10 0 ) - 1875 ( L / 100 ) 2 + 200 ( L / 100 ) 3 ) X ( 2 . 08 + 0 . 609C b - 1 . 603C wf - 0 . 0129 ( L / d 1 )) where : F b is the calculated minimum bow height, in mm; L is the length, as defined in regulation 3, in m; B is the moulded breadth, as defined in regulation 3, in m; d 1 is the draught at 85 % of the least moulded depth, in metres; C b is the block coefficient, as defined in regulation 3; C wf is the waterplane area coefficient forward of L / 2 : C wf = A wf / { ( L / 2 ) x B}; A wf is the waterplane area forward of L / 2 at draught d1, in m ² . For ships to which timber freeboards are assigned, the summer freeboard ( and not the timber summer freeboard ) is to be assumed when applying paragraph ( 1 ). ( 2 ) Where the bow height required in paragraph ( 1 ) is obtained by sheer, the sheer shall extend for at least 15 % of the length of the ship measured from the forward perpendicular . Where it is obtained by fitting a superstructure, such superstructure shall extend from the stem to a point at least 0 . 07L abaft the forward perpendicular, and shall be enclosed a s defined in regulation 3 ( 10 ). ( 3 ) Ships which, to suit exceptional operational requirements, cannot meet the requirements of paragraphs ( 1 ) and ( 2 ) of this regulation may be given special consideration by the Administration . ( 4 ) ( a ) The sheer of the forec astle deck may be taken into account, even if the length of the forecastle is less than 0 . 15L, but greater than 0 . 07L, provided that the forecastle height is not less than one half of standard height of superstructure as defined in regulation 33 between 0 . 07L and the forward perpendicular .

• 65 - ( b ) Where the forecastle height is less than one half of the standard height of superstructure, as defined in regulation 33, the credited bow height may be determined as follows : ( i ) Where the freeboard deck has sheer ext ending from abaft 0 . 15L, by a parabolic curve having its origin at 0 . 15L abaft the forward perpendicular at a height equal to the midship depth of the ship, extended through the point of intersection of forecastle bulkhead and deck, and up to a point at th e forward perpendicular not higher than the level of the forecastle deck ( as illustrated in figure 39 . 1 ). However, if the value of the height denoted ht in figure 39 . 1 is smaller than the value of the height denoted hb then ht may be replaced by hb in the available bow height . ( ii ) Where the freeboard deck has sheer extending for less than 0 . 15L or has no sheer, by a line from the forecastle deck at side at 0 . 07L extended parallel to the base line to the forward perpendicular ( as illustrated in figure 39 . 2 ) .

• 66 - hf = Half standard height of superstructure as defined in regulation 33 . ( 5 ) All ships assigned a type ‘B’ freeboard, other than oil tankers * , chemical tankers * and gas carriers * , shall have additional reserve buoyancy in the fore end . Within the range of 0 . 15L abaft of the forward perpendicular, the sum of the projected area between the summer load waterline and the deck at side ( A1 and A2 in figure 39 . 3 ) and the projected area of an enclosed superstructure, if fitted, ( A3 ) shall not be less than : * Oi l tankers, chemical tankers and gas carriers are defined in the International Convention for the Safety of Life at Sea ( SOLAS ) , 1974, regulations II - 1 / 2 . 12, VII / 8 . 2 and VII / 11 . 2, respectively .

• 67 - ( 0 . 15F min + 4 ( L / 3 + 10 )) L / 1000 ( m 2 ) , where : Fmin is calculated by : Fmin = ( F0 x f1 ) + f 2 ; F0 is the tabular freeboard, in mm, taken from table 28 . 2, corrected for regulation 27 ( 9 ) or 27 ( 10 ) , as applicable; f1 is the correction for block coefficient given in regulation 30; and f2 is the correction for depth, in mm, given in regulation 31 . Figure 39 . 3 Regulation 40 Minimum freeboards Summer freeboard ( 1 ) The minimum freeboard in summer shall be the freeboard derived from the tables in regulation 28, as modified by the corrections in regulations 27, as applicable, 29, 30, 31, 32, 37, 38 and, if applicable, 39 . ( 2 ) The freeboard in salt water, as calculated in accordance with paragraph ( 1 ) , but without the correction for deck line, as provided by regulation 32, shall not be less than 50 mm . For ships having in positi on 1 hatchways with covers which do not comply with the requirements of regulation 16 ( 1 ) through ( 5 ) or regulation 26, the freeboard shall be not less than 150 mm . Tropical freeboard ( 3 ) The minimum freeboard in the Tropical Zone shall be the freeboard obt ained by a deduction from the summer freeboard of one forty - eighth of the summer draught measured from the top of the keel to the centre of the ring of the load line mark . ( 4 ) The freeboard in salt water, as calculated in accordance with paragraph ( 3 ) , but without the correction for deck line, as provided by regulation 32, shall not be less than 50 mm . For

• 68 - ships having in position 1 hatchways with covers which do not comply with the requirements of regulation 16 ( 1 ) through ( 5 ) or regulation 26, the freeboar d shall be not less than 150 mm . Winter freeboard ( 5 ) The minimum freeboard in winter shall be the freeboard obtained by an addition to the summer freeboard of one forty - eighth of summer draught, measured from the top of the keel to the centre of the ring of the load line mark . Winter North Atlantic freeboard ( 6 ) The minimum freeboard for ships of not more than 100 m in length which enter any part of the North Atlantic defined in regulation 52 ( Annex II ) during the winter seasonal period shall be the winter freeboard plus 50 mm . For other ships, the winter North Atlantic freeboard shall be the winter freeboard . Fresh water freeboard ( 7 ) The minimum freeboard in fresh water of unit density shall be obtained by deducting from the minimum freeboard in salt water : ( Cm ) where : is the displacement in salt water in tonnes at the summer load waterline; and T is the tonnes per centimetre immersion in salt water at the summer load waterline . ( 8 ) Where the displacement at the summer load waterline cannot be certi fied, the deduction shall be one forty - eight of summer draught, measured from the top of the keel to the centre of the ring of the load line mark . CHAPTER IV SPECIAL REQUIREMENTS FOR SHIPS ASSIGNED TIMBER FREEBOARD Regulation 41 Application of this chapter Regulations 42 to 45 inclusive apply only to ships to which timber load lines are assigned . Regulation 42 Definitions ( 1 ) Timber deck cargo . The term ” timber deck cargo ” means a cargo of timber carried on an uncovered part of a freeboard deck . The term does not include wood pulp or similar cargo *.

• 69 - * Reference is made to the Code of Safe Practice for Ships Carrying Timber Deck Cargoes, adopted by the Organization by resolution A . 715 ( 17 ) , as amended . ( 2 ) Timber load line . A timber deck cargo may be regarded as giving a sh ip a certain additional buoyancy and a greater degree of protection against the sea . For that reason, ships carrying a timber deck cargo may be granted a reduction of freeboard calculated according to the provisions of regulation 45 and marked on the ship ’ s side in accordance with the provisions of regulations 6 ( 3 ) and ( 4 ). However, in order that such special freeboard may be granted and used, the timber deck cargo shall comply with certain conditions which are laid down in regulation 44, and the ship itsel f shall also comply with certain conditions relating to its construction which are set out in regulation 43 . Regulation 43 Construction of the ship Superstructure ( 1 ) Ships shall have a forecastle of at least standard height and a length of at least 0 . 07L . In addition, if the ship is less than 100 m in length, a poop of at least standard height, or a raised quarterdeck with a deckhouse of at least the same total height shall be fitted aft . Double bottom tanks ( 2 ) Double bottom tanks, where fitted with in the midship half length of the ship, shall have adequate watertight longitudinal subdivision . Bulwarks ( 3 ) The ship shall be fitted either with permanent bulwarks at least 1 m in height, specially stiffened on the upper edge and supported by strong bulw ark stays attached to the deck and provided with necessary freeing ports, or with efficient rails of the same height and of specially strong construction . Regulation 44 Stowage General ( 1 ) Openings in the deck exposed to weather over which cargo is stowed shall be securely closed and battened down . The ventilators and air pipes shall be efficiently protected . ( 2 ) Timber deck cargoes shall extend over at least the entire available length which is the total length of the well or wells between superstructures .

• 70 - Where there is no limiting superstructure at the after end, the timber shall extend at least to the after end of the aftermost hatchway . The timber deck cargo shall extend athwartships as close as possible to the ship ’ s side, due allowance being made for obstructions such as guard rails, bulwark stays, uprights, pilot access, etc . , provided that any gap thus created at the side of the ship shall not exceed a mean of 4 % of the breadth . The timber shall be stowed as solidly as possible to at least the stand ard height of the superstructure other than any raised quarterdeck . ( 3 ) On a ship within a seasonal winter zone in winter, the height of the deck cargo above the deck exposed to weather shall not exceed one third of the extreme breadth of the ship . ( 4 ) The timber deck cargo shall be compactly stowed, lashed and secured . It shall not interfere in any way with the navigation and necessary work of the ship . Uprights ( 5 ) Uprights, when required by the nature of the timber, shall be of adequate strength consider ing the breadth of the ship; the strength of the uprights shall not exceed the strength of the bulwark and the spacing shall be suitable for the length and character of timber carried, but shall not exceed 3 m . Strong angles or metal sockets or equally eff icient means shall be provided for securing the uprights . Lashings ( 6 ) Timber deck cargo shall be effectively secured throughout its length by a lashing system acceptable to the Administration for the character of the timber carried *. * Reference is made t o the Code of Safe Practice for Ships Carrying Timber Deck Cargoes, adopted by the Organization by resolution A . 715 ( 17 ) , as amended . Stability ( 7 ) Provision shall be made for a safe margin of stability at all stages of the voyage, regard being given to additions of weight, such as those arising from absorption of water or icing, if applicable, and to losses of weight such as those arising from consumption of fuel and stores . Protection of crew, access to ma chinery spaces, etc . ( 8 ) In addition to the requirements of regulation 25 ( 5 ) , guard - rails or lifelines not more than 350 mm apart vertically shall be provided on each side of the cargo deck to a height of at least 1 m above the cargo . In addition a lifelin e, preferably wire rope set up taut with a stretching screw, shall be provided as near as practicable to the centreline of the ship . The stanchion supports to all guard - rails and lifelines shall be so spaced as to prevent undue sagging . Where the cargo is uneven, a safe walking surface of not less than 600 mm in width shall be fitted over the cargo and effectively secured beneath or adjacent to the lifeline .

• 71 - ( 9 ) Where the requirements prescribed in paragraph ( 8 ) are impracticable, alternative arrangements s atisfactory to the Administration shall be used . Steering arrangements ( 10 ) Steering arrangements shall be effectively protected from damage by cargo and, as far as practicable, shall be accessible . Efficient provision shall be made for steering in the eve nt of a breakdown in the main steering arrangements . Regulation 45 Computation for freeboard ( 1 ) The minimum summer freeboards shall be computed in accordance with regulations 27 ( 5 ) , 27 ( 6 ) , 27 ( 14 ) , 28, 29, 30, 31, 32, 37 and 38, except that regulation 37 is modified by substituting the following percentages for those given in regulation 37 : Total Effective Length of Superstructure 0 0 . 1 L 0 . 2 L 0 . 3 L 0 . 4 L 0 . 5 L 0 . 6 L 0 . 7 L 0 . 8 L 0 . 9 L 1 . 0 L Percentage of deduction for all types of superstructure 20 31 41 53 64 70 76 82 88 94 100 Table 45 . 1 Percentages at intermediate lengths of superstructure shall be obtained by linear interpolation . ( 2 ) The Winter Timber Freeboard shall be obtained by adding to the Summer Timber Freeboard one thirty - sixth of the moulded summer timber draught . ( 3 ) The Winter North Atlantic Timber Freeboard shall be the same as the Winter North Atlantic Freeboard prescribed in regulation 40 ( 6 ). ( 4 ) The Tropical Timber Freeboard shall be obtained by deducting from the Summer Timber Freeboard one forty - eighth of the moulded summer timber draught . ( 5 ) The Fresh Water Timber Freeboard shall be computed in accordance with regulation 40 ( 7 ) , based on the summer timber load waterline or with regulation 40 ( 8 ) , based on the summer timber draught measured from the top of the keel to the summer timber load line . ( 6 ) Timber freeboards may be assigned to ships with reduced type ‘B’ freeboards, provided the timber freeboards are calculated on the basis of the ordinary type ‘B’ freeboard . ( 7 ) Th e Timber Winter mark and / or the Timber Winter North Atlantic mark shall be placed at the same level as the reduced type ‘B’ Winter mark when the computed Timber Winter mark and / or the computed Timber Winter North Atlantic mark fall below the reduced type ’ B’ Winter mark .

• 72 - ANNEX II ZONES, AREAS AND SEASONAL PERIODS The zones and areas in this Annex are, in general, based on the following criteria : Summer - not more than 10 per cent winds of force 8 Beaufort ( 34 knots ) or more . Tropical - not more than 1 per cent winds of force 8 Beaufort ( 34 knots ) or more . Not more than one tropical storm in 10 years in an area of 5°square in any one separate calendar month . In certain special areas, for practical reasons, some degree of relaxation has been found acceptable . A chart is attached to this Annex to illustrate the zones and areas defined below . Regulation 46 Northern Winter Seasonal Zones and Area ( 1 ) North Atlantic Winter Seasonal Zones I and II . ( a ) The North Atlantic Winter Seasonal Zone I lies within the meridian of longitude 50°W from the coast of Greenland to latitude 45°N, thence the parallel of latitude 45°N to longitude 15°W, thence the meridian of longitude 15°W to latitude 60°N, thence th e parallel of latitude 60°N to the Greenwich Meridian, thence this meridian northwards . Seasonal periods : WINTER : 16 October to 15 April SUMMER : 16 April to 15 October ( b ) The North Atlantic Winter Seasonal Zone II lies within the meridian of longitude 68°30’W from the coast of the United States to latitude 40°N, thence the rhumb line to the point latitude 36°N, longitude 73°W, thence the parallel of latitude 36°N to longitude 25°W and thence the rhumb line to Cape Torinana . Excluded from this zone are t he North Atlantic winter seasonal zone I, the North Atlantic winter seasonal area and the Baltic Sea bounded by the parallel of latitude of the Skaw in the Skagerrak . The Shetland Islands are to be considered as being on the boundary of the North Atlantic winter seasonal zones I and II . Seasonal periods : WINTER : 1 November to 31 March SUMMER : 1 April to 31 October

• 73 - ( 2 ) North Atlantic Winter Seasonal Area The boundary of the North Atlantic Winter Seasonal Area is - the meridian of longitude 68°30’W fro m the coast of the United States to latitude 40°N, thence the rhumb line to the southernmost intersection of the meridian of longitude 61°W with the coast of Canada and thence the east coasts of Canada and the United States . Seasonal periods : For ships ov er 100 m ( 328 feet ) in length : WINTER : 16 December to 15 February SUMMER : 16 February to 15 December For ships of 100 m ( 328 feet ) and under in length : WINTER : 1 November to 31 March SUMMER : 1 April to 31 October ( 3 ) North Pacific Winter Seasonal Zone The southern boundary of the North Pacific Winter Seasonal Zone is - the parallel of latitude 50°N from the east coast of the USSR to the west coast of Sakhalin, thence the west coast of Sakhalin to the southern extremity of Cape Kuril’on, thence the rhumb line to Wakkanai, Hokkaido, Japan, thence the east and south coasts of Hokkaido to longitude 145°E, thence the meridian of longitude 145°E to latitude 3 5°N, thence the Parallel of latitude 35°N to longitude 150°W and thence the rhumb line to the southern extremity of Dall Island, Alaska . Seasonal periods : WINTER : 16 October to 15 April SUMMER : 16 April to 15 October Regulation 47 Southern Winter Seasonal Zone The northern boundary of the Southern Winter Seasonal Zone is : the rhumb line from the east c oast of the American continent at Cape Tres Puntas to the point latitude 34° S, longitude 50° W, thence the parallel of latitude 34° S to longitude 16° E, thence the rhumb line to the point latitude 36° S, longitude 20° E, thence the rhumb line to the poin t latitude 34° S, longitude 30° E, thence along the rhumb line to the point latitude 35°30 ́ S, longitude 118° E, and thence the rhumb line to Cape Grim on the north - west coast of Tasmania; thence along the north and east coasts of Tasmania to the southernm ost point of Bruny Island, thence the rhumb line to Black Rock Point on Stewart Island, thence the rhumb line to the point latitude 47° S, longitude 170° E, thence along the rhumb line to the point latitude 33° S, longitude 170° W, and thence the parallel of latitude 33° S to the point latitude

• 74 - 33° S, longitude 79° W, thence the rhumb line to the point latitude 41° S, longitude 75° W, thence the rhumb line to Punta Corona lighthouse on Chiloe Island, latitude 41°47 ́ S, longitude 73°53 ́ W, thence along the n orth, east and south coasts of Chiloe Island to the point latitude 43°20 ́ S, longitude 74°20 ́ W, and thence the meridian of longitude 74°20 ́ W to the parallel of latitude 45°45 ́ S, including the inner zone of Chiloe channels from the meridian 74°20 ́ W to t he east Seasonal periods : WINTER : 16 April to 15 October SUMMER : 16 October to 15 April Regulation 48 Tropical Zone ( 1 ) Northern Boundary of the Tropical Zone The northern boundary of the Tropical Zone is - the parallel of latitude 13°N from the east coast of the American continent to longitude 60°W, thence the rhumb line to the point latitude 10°N, longitude 58°W, thence the parallel of latitude 10°N to longitude 20°W, thence the meridian of longitude 20°W to latitude 30°N and thence the parallel of l atitude 30°N to the west coast of Africa; from the east coast of Africa the parallel of latitude 8°N to longitude 70°E, thence the meridian of longitude 70°E to latitude 13°N, thence the parallel of latitude 13°N to the west coast of India; thence the sout h coast of India to latitude 10°30’N on the east coast of India, thence the rhumb line to the point latitude 9°N, longitude 82°E, thence the meridian of longitude 82°E to latitude 8°N, thence the parallel of latitude 8°N to the west coast of Malaysia, then ce the coast of South - East Asia to the east coast of Viet - Nam at latitude 10°N, thence the parallel of latitude 10°N to longitude 145°E, thence the meridian of longitude 145°E to latitude 13°N and thence the parallel of latitude 13°N to the west coast of t he American continent . Saigon is to be considered as being on the boundary line of the Tropical Zone and the Seasonal Tropical Area . ( 2 ) Southern Boundary of the Tropical Zone The southern boundary of the Tropical Zone is - the rhumb line from the Port of Santos, Brazil, to the point where the meridian of longitude 40°W intersects the Tropic of Capricorn; thence the Tropic of Capricorn to the west coast of Africa; from the east coast of Africa the parallel of latitude 20°S to the west coast of Madagascar , t hence the west and north coasts of Madagascar to longitude 50°E, thence the meridian of longitude 50° E to latitude 10°S, thence the parallel of latitude 10°S to longitude 98°E, thence the rhumb line to Port Darwin, Australia, thence the coasts of Australi a and Wessel Island

• 75 - eastwards to Cape Wessel, thence the parallel of latitude 11°S to the west side of Cape York; from the east side of Cape York the parallel of latitude 11°S to longitude 150° W, thence the rhumb line to the point latitude 26°S, longitude 75°W, thence the rhumb line to the point latitude 32°47’S, longitude 72°W, and thence to the parallel of latitude 32°47’S to the west coast of South America . Valparaiso and Santos are to be considered as being on the boundary line of the Tropical and Summer Zones . ( 3 ) Areas to be included in the Tropical Zone The following areas are to be treated as included in the Tropical Zone - ( a ) The Suez Canal, the Red Sea and the Gulf of Aden, from Port Said to the meridian of longitude 45°E . Aden and Berbe ra are to be considered as being on the boundary line to the Tropical Zone and the Seasonal Tropical Area . ( b ) The Persian Gulf to the meridian of longitude 59°E . ( c ) The area bounded by the parallel of latitude 22°S from the east coast of Australia to the Great Barrier Reef, thence the Great Barrier Reef to latitude 11°S . The northern boundary of the area is the southern boundary of the Tropical Zone . Regulation 49 Seasonal Tropical Areas The following are Seasonal Tropical Areas : ( 1 ) In the North Atlanti c An area bounded - on the north by the rhumb line from Cape Catoche, Yucatan, to Cape San Antonio, Cuba, the north coast of Cuba to latitude 20°N and thence the parallel of latitude 20°N to longitude 20°W; on the west by the coast of the American continent; on the south and east by the northern boundary of the Tropical Zone . Seasonal periods : TROPICAL : 1 November to 15 July SUMMER : 16 July to 31 October ( 2 ) In the Arabian Sea An area bounded - on the west by the coast of Africa, the meridian of longitude 45°E in the Gulf of Aden, the coast of South Arabia and the meridian of longitude 59°E in the Gulf of Oman; on the north and east by the coasts of Pakistan and India; on the south by the northern boundary of the Tropical Zone .

• 76 - Seasonal periods : TROPICAL : 1 September to 31 May SUMMER : 1 June to 31 August ( 3 ) In the Bay of Bengal The Bay of Bengal north of the northern boundary of the Tropical Zone . Seasonal periods : TROPICAL : 1 December to 30 April SUMMER : 1 May to 30 November ( 4 ) In the Sout h Indian Ocean ( a ) An area bounded - on the north and west by the southern boundary of the Tropical Zone and the east coast of Madagascar; on the south by the parallel of latitude 20°S; on the east by the rhumb line from the point latitude 20°S, longitude 50°E, to the point latitude 15°S, longitude 51°30’E, and thence by the meridian of longitude 51°30’E to latitude 10°S . Seasonal periods : TROPICAL : 1 April to 30 November SUMMER : 1 Dec ember to 31 March ( b ) An area bounded - on the north by the southern boundary of the Tropical Zone; on the east by the coast of Australia; on the south by the parallel of latitude 15°S from longitude 51°30’E, to longitude 114°E and thence the meridian of l ongitude 114°E to the coast of Australia . on the west by the meridian of longitude 51°30’E . Seasonal periods : TROPICAL : 1 May to 30 November SUMMER : 1 December to 30 April ( 5 ) In the China Sea An area bounded - on the west and north by the coasts of Vie t - Nam and China from latitude 10°N to Hong Kong; on the east by the rhumb line from Hong Kong to the Port of Sual ( Luzon Island ) and the west coasts of the Islands of Luzon, Samar and Leyte to latitude 10°N; on the south by the parallel of latitude 10°N .

• 77 - H ong Kong and Sual are to be considered as being on the boundary of the Seasonal Tropical Area and Summer Zone . Seasonal periods : TROPICAL : 21 January to 30 April SUMMER : 1 May to 20 January ( 6 ) In the North Pacific . ( a ) An area bounded - on the north by the parallel of latitude 25°N; on the west by the meridian of longitude 160°E; on the south by the parallel of latitude 13°N; on the east by the meridian of longitude 130°W . Seasonal periods : TROPICAL : 1 April to 31 October SUMMER : 1 November to 31 Mar ch ( b ) An area bounded - on the north and east by the west coast of the American continent; on the west by the meridian of longitude 123°W from the coast of the American continent to latitude 33°N and by the rhumb line from the point latitude 33°N, longitu de 123°W, to the point latitude 13°N, longitude 105°W; on the south by the parallel of latitude 13°N . Seasonal periods : TROPICAL : 1 March to 30 June and 1 November to 30 November SUMMER : 1 July to 31 October and 1 December to 28 / 29 February ( 7 ) In the S outh Pacific ( a ) The Gulf of Carpentaria south of latitude 11°S . Seasonal periods : TROPICAL : 1 April to 30 November SUMMER : 1 December to 31 March ( b ) An area bounded : on the north and east by the southern boundary of the Tropical Zone; on the south by the parallel of latitude of 24°S from the east coast of Australia to longitude 154°E, thence by the meridian of longitude 154°E to the Tropic of Capricorn and thence by the Tropic of Capricorn to longitude 150°W, thence by the meridian of l ongitude 150°W to latitude 20°S and thence by the parallel of latitude 20°S to the point where it intersects the southern boundary of the Tropical Zone; and

• 78 - on the west by the boundaries of the area within the Great Barrier Reef included in the Tropical Zo ne and by the east coast of Australia . Seasonal periods : TROPICAL : 1 April to 30 November SUMMER : 1 December to 31 March Regulation 50 Summer Zones The remaining areas constitute the Summer Zones . However, for ships of 100 metres ( 328 feet ) and under in length, the area bounded - on the north and west by the east coast of the United States; on the east by the meridian of longitude 68°30’W from the coast of the United States to latitude 40°N and thence by the rhumb line to the point latitude 36°N, longitu de 73° W; on the south by the parallel of latitude 36°N; is a Winter Seasonal Area . Seasonal periods : WINTER : 1 November to 31 March SUMMER : 1 April to 31 October Regulation 51 Enclosed Seas ( 1 ) Baltic Sea This sea bounded by the parallel of latitude of The Skaw in the Skagerrak is included in the Summer Zones . However, for ships of 100 metres ( 328 feet ) and under in length, it is a Winter Seasonal Area . Seasonal periods : WINTER : 1 November to 31 March SUMMER : 1 April to 31 October ( 2 ) Black Sea . This sea is included in the Summer Zones . However, for ships of 100 metres ( 328 feet ) and under in length, the area north of latitude 44 N is a Winter Seasonal Area . Seasonal periods : WINTER : 1 December to 28 / 29 February SUMMER : 1 March to 30 November

• 79 - ( 3 ) Me diterranean This sea is included in the Summer Zones . However, for ships of 100 metres ( 328 feet ) and under in length, the area bounded - on the north and west by the coasts of France and Spain and the meridian of longitude 3 E from the coast of Spain to latitude 40 N; on the south by the parallel of latitude 40 N from longitude 3 E to the west coast of Sardinia; on the east by the west and north coasts of Sardinia from latitude 40 N to longitude 9 E, thence by the meridian of longitude 9 E to the south coast of Corsica, thence by the west and north coasts of Corsica to longitude 9 E and thence by the rhumb line to Cape Sicie; is a Winter Seasonal Area . Seasonal periods : WINTER : 16 December to 15 March SUMMER : 16 March to 15 December ( 4 ) Sea of Japan Thi s sea south of latitude 50 N is included in the Summer Zones . However, for ships of 100 metres ( 328 feet ) and under in length, the area between the parallel of latitude 50 N and the rhumb line from the east coast of Korea at latitude 38 N to the west coast of Hokkaido, Japan, at latitude 43 12’N is a Winter Seasonal Area . Seasonal periods : WINTER : 1 December to 28 / 29 February SUMMER : 1 March to 30 November Regulation 52 The Winter North Atlantic Load Line The part of the North Atlantic referred to in Reg ulation 40 ( 6 ) ( Annex I ) comprises : ( a ) that part of the North Atlantic Winter Seasonal Zone II which lies between the meridians of 15°W and 50°W; ( b ) the whole of the North Atlantic Winter Seasonal Zone I, the Shetland Islands to be considered as being on the boundary .

• 80 - Annex IV Verification of compliance Regulation 53 Application Contracting Governments shall use the provisions of the Code for Implementation in the execution of their obligations and responsibilities contained in the present Convention . Regulation 54 Verification of compliance ( 1 ) Every Contracting Government shall be subject to periodic audits by the Organization in accordance with the audit standard to verify compliance with and implementation of the present Convention . ( 2 ) The Secretary - General of the Organization shall have responsibility for administering the Audit Scheme, based on the guidelines developed by the Organization *.

• 81 - ( 3 ) Every Contracting Government shall have responsibility for facilitating the conduct of t he audit and implementation of a programme of actions to address the findings, based on the guidelines developed by the Organization *. ( 4 ) Audit of all Contracting Governments shall be : ( a ) based on an overall schedule developed by the Secretary - General of the Organization, taking into account the guidelines developed by the Organization * ; and ( b ) conducted at periodic intervals, taking into account the guidelines developed by the Organization *. * Refer to the Framework and Procedures for the IMO Member State Audit Scheme, adopted by the Organization by resolution A . 1067 ( 28 ) .

ภาคผนวก 2 2.1 ใบส้าคัญรับรองแนวน ้าบรรทุกระหว่างประเทศ ( INTERNATIONAL LOAD LINE CERTIFICATE ) 2.2 ใบส้าคัญรับรองการยกเว้นแนวน ้าบรรทุกระหว่างประเทศ ( INTERNATIONAL LOAD LINE EXEMPTION CERTIFICATE )

Certificate No . INTERNATIO NAL LOAD LINE CERTIFICATE Issued under the provisions of the INTERNATIONAL CONVENTION ON LOAD LINES,1966, In accordance with Assembly resolution A . 883 ( 21 ) relating to the global implementation of the harmonized system of survey and certification under the authority of the Government of THE KINGDOM OF THAILAND by t he MARINE DEPARTMENT Name of Ship Distinctive Number or letters Port of Registry Length ( L ) as defined in Article2 ( 8 ) IMO Number Freeboard assigned as * : A new ship / An existing ship Type of ship * : Type ‘ A ’ / Type ‘ B ’ / Type ‘ B ’ with reduced freeboard / Type ‘ B ’ with increased freeboard * Delete as appropriate . Freeboard from Deck Line ** Load Line ** Tropical … … … … … . . … … … ........ m m . ( T ) … … … . . … … … . mm . above ( S ) Summe r … . … … … .. .. … . … … … mm . ( S ) Upper edge of line through centre of ring Winter … … … … … … … . ..... mm . ( W ) … … … … … … … … mm . below ( S ) Winter North Atlantic … … ... . … … . … … … mm . ( WNA ) … … … … … . .. mm . below ( S ) Timber Tropical … … … . . … . … … mm . ( LT ) .. … . … . … … . . mm . above ( LS ) Timber Summer … … … . … … . mm . ( LS ) . . … … . . … … mm . above ( S ) Timber Winter … … … . … . .. … … . mm . ( LW ) … . … … . mm . below ( LS ) Timber Winter North Atlantic … … ... mm . ( L WNA ) … … … .. mm . below ( LS ) ** Freeboard line which are not applicable need not be entered on the certificate . Subdivision load line may be entered on the certificate on a voluntary basis . Allowance for Fresh Water for al l freeboards other than timber … … … mm . For ti mber freeboard … . mm . The upper edge of the deck line from which these freeboards are measured is … .. … … mm . … deck at side .

This is to certify : 1 T hat ship has been surveyed in accordance with the requirements of article 14 of Convention . 2 T hat the survey showed that the freeboards have been assigned and load lines shown above have been marked in accordance with the Convention . The provisions of the Convention from which the ship is exempted under article 6 ( 2 ) are : … This certificate is valid until … , subject to annual surveys in accordance with Article14 ( 1 )( c ) of the Convention . Completion date of the survey on which this certificate is based ( dd / mm / yyyy ) Issued at … ( date of issue ) ( ) Government Ship Surveyor

Endorsement for annual surveys THIS IS TO CERTIFY that, at an annual survey required by article 14 ( 1 )( c ) of the Convention, the ship was found to comply with the relevant requirements of the Convention . Annual Survey : Signed : ( ) Place : Date : Annual Survey : Signed : ( ) Place : Date : Annual Survey : Signed : ( ) Place : Date : Annual Survey : Signed : ( ) Place : Date : Annual survey in accordance with article 19 ( 8 )( c ): THIS IS TO CERTIFY that, at a survey in accordance with article 19 ( 8 )( c ) of the Convention, the ship was found to comply with the relevant requirement of the Convention . Signed : ( ) Place : Date :

Endorsement to extend the certificate if valid for less than 5 years where article 19 ( 3 ) applies The ship complies with the relevant requirement of the Convention, and this certificate shall, in accordance with article 19 ( 3 ) of the Convention, be accepted as valid until … … Signed : ( ) Place : Date : Endorsement where the renewal survey has been completed and article 19 ( 4 ) applies The ship complies with the relevant requirement of the Convention, and this certificate shall, in accordance with article 19 ( 4 ) of the Convention, be accepted as valid until … … Signed : ( ) Place : Date : Endorsement to extend the validity of the certificate until reaching the port of survey of for a period of grace where article 19 ( 5 ) or 19 ( 6 ) applies This certificate shall, in accordance with article 19 ( 5 )/ 19 ( 6 )** of the Convention, be accepted as valid until … … Signed : ( ) Place : Date : ** Delete as appropriate . Endorsement for advancement of anniversary date where article 19 ( 8 ) applies In accordance with article 19 ( 8 ) of the Convention the new anniversary date is … … Signed : ( ) Place : Date : In accordance with article 19 ( 8 ) of the Convention the new anniversary date is … … Signed : ( ) Place : Date :

Certificate No . INTERNATIONAL LOAD LINE EXEMPTION CERTIFICATE Issued under the provisions of the INTERNATIONAL CONVENTION ON LOAD LINES,1966, In accordance with Assembly resolution A . 883 ( 21 ) relating to the global implementation of the harmonized system of survey and certification under the authority of the Government of THE KINGDOM OF THAILAND by the MARINE DEPARTMENT Name of Ship Distinctive Number or letters Port of Registry Length ( L ) as defined in Article2 ( 8 ) IMO Number THIS IS TO CERTIFY : That the ship is exempted from the provisions of the Convention, under the authority co nferred by article 6 ( 2 )/ 6 ( 4 ) * of the Convention referred to above . The provisions of the Convention from which the ship is exempted under article 6 ( 2 ) are; … .. … … … … … … … * Delete as appropriate . The voyage for which exemption is granted under article 6 ( 4 ) is : From :… To :… … Conditions, if any, on which the exemption is granted under either article 6 ( 2 ) or article 6 ( 4 ): … … … … … .** ** Insert the date of expiry as specifie d by the Administration in accordance with article 19 ( 10 ) of the Convention . The day and the month of this date correspond to the anniversary date as defined in article 2 ( 9 ) of the Convention unless amended to the anniversary date as defined in article 2 ( 9 ) of the Convention unless amended in accordance with article 19 ( 8 ) of the Convention . This certificate is valid until … subject to annual surveys in accordance with art icle 14 ( 1 )( c ) of the Convention . Completion date of the survey on which this certificate is based :… … ( dd / mm / yyyy ) Issued at … … … … … ( Date of issue ) ( ) Government Ship Surveyor

Endorsement for annual surveys THIS IS TO CERTIFY that, at an annual survey required by article 14 ( 1 )( c ) of the Convention, the ship was found to comply with the conditions under which this exemption was granted . Annual Survey : Signed : ( ) Place : Date : Annual Survey : Signed : ( ) Place : Date : Annual Survey : Signed : ( ) Place : Date : Annual Survey : Signed : ( ) Place : Date : Annual survey in accordance with article 19 ( 8 )( c ): THIS IS TO CERTIFY that, at a survey in accordance with article 19 ( 8 )( c ) of the Convention, the ship was found to comply with the relevant requirement of the Convention . Signed : ( ) Place : Date :

Endorsement to extend the certificate if valid for less than 5 years where article 19 ( 3 ) applies The ship complies with the relevant requirement of the Convention, and this certificate shall, in accordance with article 19 ( 3 ) of the Convention, be accepted as valid until … … Signed : ( ) Place : Date : Endorsement where the renewal survey has been completed and article 19 ( 4 ) applies The ship complies with the relevant requirement of the Convention, and this certificate shall, in accordance with article 19 ( 4 ) of the Convention, be accepted as valid until … … Signed : ( ) Place : Date : Endorsement to extend the validity of the certificate until reaching the port of survey of for a period of grace where article 19 ( 5 ) or 19 ( 6 ) applies This certificate shall, in accordance with article 19 ( 5 )/ 19 ( 6 )** of the Convention, be accepted as valid until … … Signed : ( ) Place : Date : ** Delete as appropriate . Endorsement for advancement of anniversary date where article 19 ( 8 ) applies In accordance with article 19 ( 8 ) of the Convention the new anniversary date is … … Signed : ( ) Place : Date : In accordance with article 19 ( 8 ) of the Convention the new anniversary date is … … Signed : ( ) Place : Date :

ภาคผนวก 3 อัตราค่าธรรมเนียมการตรวจเรือ เพื่อออกหรือสลักหลังใบสาคัญรับรอง แนวน ้าบรรทุกระหว่างประเทศ และ ใบสำคัญรับรองการยกเว้น แนวน ้าบรรทุกระหว่างประเทศ ขนาดตันกรอสส์ ตรวจเรือเพื่อออกใบสาคัญรับรองฯ ครั้งละ (บาท) ตรวจเรือเพื่อสลักหลัง ครั้งละ (บาท) ขนาดต่ำกว่า 500 500 250 ขนาดตั้งแต่ 500 แต่ไม่ถึง 1,000 1,000 500 ขนาดตั้งแต่ 1,000 แต่ไม่ถึง 1,500 2,000 1,000 ขนาดตั้งแต่ 1,500 แต่ไม่ถึง 5,000 3,000 1,000 ขนาดตั้งแต่ 5,000 แต่ไม่ถึง 10,000 5,000 2,500 ขนาดตั้งแต่ 10,000 แต่ไม่ถึง 100,000 10,000 5,000 ขนาดตั้งแต่ 100,000 ขึ้นไป 20,000 10,000