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Rules & Guidelines

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Guidelines for Certification of Safety Management System for Safe Operation of Ships and Pollution Preventio+

Guidelines for Certification of Safety Management System for Safe Operation of Ships and Pollution Prevention 2025 Release date:2025-09-30 Effective date:2026-01-01

Rules for Natural Gas Fuelled Ships +

Rule Change Notice for Rules for Ships Using Natural Gas Fuel（R014CN01-2025) Release date:2025-09-22 Effective date:2026-01-01
RULES FOR SHIPS USING NATURAL GAS FUELS 2024 Release date:2024-07-01 Effective date:2024-07-01
+ History

Rules for Ships Using Natural Gas Fuels 2021 RCN NO.1 Release date:2021-11-18 Effective date:2022-01-01

Rules for Ships Using Natural Gas Fuels 2021 Release date:2020-12-31 Effective date:2021-01-01

RCN No.2 (December 2018) - Rules for Natural Gas Fuelled Ships,2018 Release date:2018-12-19

RCN No.1 (January 2018) - Rules for Natural Gas Fuelled Ships,2018 Release date:2018-02-24

RCN No.1 (November 2017) - Rules for Natural Gas Fuelled Ships,2017 Release date:2017-11-21

Rules for Natural Gas Fuelled Ships, 2017 Release date:2016-11-22

Rules for Green Ships+

RULES FOR GREEN-ECO SHIPS CHANGE NOTICE Version 2025. RCN No.1 Release date:2025-07-14 Effective date:2025-08-01
Rules for Green-Eco Ships 2022 Release date:2022-12-30 Effective date:2023-01-01
+ History

Rules for Green Eco-Ships RCN NO.1(April 2022) Release date:2022-02-25 Effective date:2022-04-01

RULES FOR GREEN ECO-SHIPS 2020 Release date:2020-04-07

RCN No.1 (July 2019) - Rules for Green Ships Release date:2019-07-08

RCN No.1(April 2016) Rules for Green Ships Release date:2016-05-03

Rules for Green Ships 2015 Release date:2016-03-18

Guidelines for Loading and Unloading Operations of Shipborne Liquid Carbon Dioxide+

Guidelines for Loading and Unloading Operations of Shipborne Liquid Carbon Dioxide 2025 Release date:2025-07-01 Effective date:2025-07-01

Guidelines for Safety of Locations Under Survey+

GUIDELINES FOR SAFETY OF LOCATIONS UNDER SURVEY 2025 Release date:2025-07-01 Effective date:2025-07-01
GUIDELINES FOR SAFETY OF LOCATIONS UNDER SURVEY 2024 Release date:2024-05-08 Effective date:2024-07-01
+ History

Guidelines for Safety of Locations Under Survey 2020 Release date:2020-03-02 Effective date:2020-03-02

Guidelines for Digital Delivery of Ships+

Guidelines for Digital Delivery of Ships 2025 Release date:2025-07-01 Effective date:2025-07-01

Guidelines for Evaluation of Alternative Design of LNG Carrier Based on Risk Assessment+

Guidelines for Evaluation of Alternative Design of LNG Carrier Based on Risk Assessment 2025 Release date:2025-07-01 Effective date:2025-07-01

RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES +

RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES 2025 Release date:2025-06-12 Effective date:2025-07-01
RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES CCS RULE CHANGE NOTICE Version 2025. RCN No.1 Release date:2025-06-11 Effective date:2025-07-01
RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES 2025 AMENDMENTS Release date:2025-06-03 Effective date:2025-07-01
RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES 2024 Release date:2024-06-12 Effective date:2024-07-01
+ History

RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES 2024 AMENDMENTS Release date:2024-06-04 Effective date:2024-07-01

RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES 2023 Release date:2023-06-13 Effective date:2023-07-01

RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES 2023 Amendments Release date:2023-05-30 Effective date:2023-07-01

RULES FOR CONSTRUCTION OF SEA-GOING SHIPS ENGAGED ON DOMESTIC VOYAGES 2022 Release date:2022-07-01 Effective date:2022-07-01

Guidelines on Direct Calculation of Unconventional Structures of Cruise Ships+

Guidelines on Direct Calculation of Unconventional Structures of Cruise Ships 2025 Release date:2025-04-01 Effective date:2025-04-01

Guidelines for Hull Girder Ultimate Strength Assessment of Cruise Ship Based on Nonlinear Finite Element Method+

Guidelines for Hull Girder Ultimate Strength Assessment of Cruise Ship Based on Nonlinear Finite Element Method 2025 Release date:2025-04-01 Effective date:2025-04-01

Guidelines for Direct Calculation of Structural Strength Under Ice Loads+

Guidelines for Direct Calculation of Structural Strength Under Ice Loads 2025 Release date:2025-04-01 Effective date:2025-04-01

CCS Guidelines for Thickness Measurement of Hull +

Guidelines for Thickness Measurement of Hull(Ver.6.6) Release date:2025-03-05
Guidelines for Thickness Measurement of Hull(Ver.6.5) Release date:2023-01-01 Effective date:2023-01-01

Guidelines for Verification and Survey of Low Friction Performance of Hull Coatings+

Guidelines for Verification and Survey of Low Friction Performance of Hull Coatings 2024 Release date:2025-01-01 Effective date:2025-01-01

Guidelines on Evacuation Analysis for Personnel of Passenger Ships+

Guidelines on Evacuation Analysis for Personnel of Passenger Ships(2024) Release date:2024-12-18

GUIDELINES FOR DIRECT PREDICTION OF ACCELERATION RESPONSE OF CONTAINER SHIPS+

GUIDELINES FOR DIRECT PREDICTION OF ACCELERATION RESPONSE OF CONTAINER SHIPS(2024) Release date:2024-12-18

Guidelines on Calculation and Verification of the Attained Energy Efficiency Existing Ship Index (EEXI)+

Guidelines on Calculation and Verification of the Attained Energy Efficiency Existing Ship Index (EEXI)(2024 RCN No.1) Release date:2024-12-11 Effective date:2025-01-01
Guidelines on Calculation and Verification of the Attained Energy Efficiency Existing Ship Index (EEXI) 2022 Release date:2022-12-01 Effective date:2022-12-01

GUIDELINES ON SURVEY AND CERTIFICATION FOR BALLAST WATER MANAGEMENT OF SHIPS +

Guidelines on Survey and Certification for Ballast Water Management of Ships（2024 RCN NO.1） Release date:2024-12-09 Effective date:2025-01-01
Guidelines on Survey and Certification for Ballast Water Management of Ships 2022 Release date:2022-10-01 Effective date:2022-10-01
+ History

GUIDELINES ON SURVEY AND CERTIFICATION FOR BALLAST WATER MANAGEMENT OF SHIPS 2020 Release date:2020-04-01 Effective date:2020-04-01

GUIDELINES ON SURVEY AND CERTIFICATION FOR BALLAST WATER MANAGEMENT OF SHIPS 2020 Release date:2020-04-01 Effective date:2020-04-01

GUIDELINES ON SURVEY AND CERTIFICATION FOR BALLAST WATER MANAGEMENT OF SHIPS 2017 Release date:2019-12-26

GUIDELINES ON VERIFICATION OF THE ENERGY EFFICIENCY DESIGN INDEX (EEDI) OF SHIPS+

Guidelines on Calculation and Verification of the Energy Efficiency Design Index (EEDI) of International Sea-Going Ships(RCN No.1,2024) Release date:2024-07-15 Effective date:2024-08-01
Guidelines on Calculation and Verification of the Energy Efficiency Design Index (EEDI) of International Sea-going Ships amended(2023)RCN No.1 Release date:2023-06-19 Effective date:2023-08-01
Guidelines on Calculation and Verification of the Energy Efficiency Design Index(EEDI) of International Sea-going Ships 2022 Release date:2022-12-01 Effective date:2022-12-01
GUIDELINES ON VERIFICATION OF THE ENERGY EFFICIENCY DESIGN INDEX (EEDI) OF SHIPS 2020 Release date:2020-12-01 Effective date:2020-12-01

Guidelines for Ship Cyber Security+

GUIDELINES FOR SHIP CYBER SECURITY 2025 Release date:2025-12-01 Effective date:2025-12-01
+ History

Guidelines for Ship Cyber Security 2024 Release date:2024-07-15 Effective date:2024-07-15

Guidelines for Ship Cyber Security 2023 Release date:2023-05-01 Effective date:2023-05-01

Guidelines on Assessment of Ship Second Generation Intact Stability Criteria+

Guidelines on Assessment of Ship Second Generation Intact Stability Criteria 2024 Release date:2024-07-01 Effective date:2024-07-01

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