Statutory Certificates and Documents to be carried on board an oil tanker trading in Indian coastal waters, with the reference convention and justification:

1. International Tonnage Certificate (ITC '69) - Convention: International Convention on Tonnage Measurement of Ships 1969. Justification: states gross and net tonnage which define the vessel's legal size used for manning, STCW certification, port dues, and applicability of many regulations and IOPC oil spill liability limits.

1. Certificate of Class (issued by a Recognised Organisation such as IRS) - regarded as evidence of structural/mechanical standards. Justification: ensures the hull and machinery are maintained to classification society rules, underpinning safe operation and insurance.

1. International Load Line Certificate and Load Line Exemption Certificate - Convention: International Convention on Load Lines 1966 (LL 66) with amendments. Justification: verifies freeboard, watertight integrity and correct load line marks so the vessel is not overloaded, maintaining stability and buoyancy margins.

1. Safety Certificates under SOLAS:

• Cargo Ship Safety Construction Certificate (SC) - SOLAS Ch. II-1 & II-2; verifies structural, subdivision, stability, machinery and electrical safety.
• Cargo Ship Safety Equipment Certificate (SE) - SOLAS Ch. II-1, II-2 & III; confirms lifesaving and fire appliance compliance.
• Cargo Ship Safety Radio Certificate (SR) - SOLAS Ch. IV (GMDSS); verifies radio installations and watchkeeping.
• (Optional) Cargo Ship Safety Certificate if the Administration combines the above.

Justification: these certify that the ship meets the fundamental safety standards for life and property.

1. International Oil Pollution Prevention Certificate (IOPPC) - MARPOL Annex I. Justification: certifies the tanker's OWS, oil filtering equipment, control systems, sludge and cargo tank washing arrangements meet the discharge and equipment standards, preventing operational oil pollution.

1. International Pollution Prevention Certificate for the Carriage of Noxious Liquid Substances (NLS Certificate) - MARPOL Annex II. Justification: relevant if carrying category X, Y or Z Noxious Liquid Substances.

1. International Sewage Pollution Prevention Certificate (ISPPC) - MARPOL Annex IV. Justification: verifies sewage treatment plant/pulveriser/distinfection and discharge arrangement compliance.

1. International Air Pollution Prevention Certificate (IAPPC) - MARPOL Annex VI. Justification: certifies NOx, SOx, ODS and VOC compliance, engine NOx Technical File and fuel oil quality.

1. International Energy Efficiency Certificate (IEEC) - MARPOL Annex VI (EEDI). Justification: verifies the attained EEDI/EEXI and the SEEMP, supporting GHG reduction.

1. International Ballast Water Management Certificate (BWMC) - BWM Convention. Justification: verifies D-1/D-2 compliance, BWM plan and record book.

1. Anti-fouling System Certificate and Record - AFS Convention. Justification: confirms the hull is free of prohibited organotin (TBT) coatings.

1. International Anti-fouling System Certificate (AFS Certificate) - for ships > 400 GT international.

1. Shipboard Oil Pollution Emergency Plan (SOPEP) approved - MARPOL Annex I/Regulation 26 / OPRC. Justification: sets out response procedures and reporting duties for oil spills.

1. Garbage Management Plan and Garbage Record Book - MARPOL Annex V. Justification: documents waste handling and discharge compliance.

1. Oil Record Book (Part I - machinery spaces, and Part II - cargo/ballast) - MARPOL Annex I. Justification: records all operations involving oil and sludge.

1. Shipboard Marine Pollution Emergency Plan (SMPEP) - for Annex II carriage where applicable.

1. Cargo Ship Safety Certificate / Cargo securing manual.

1. ISM certificates - Document of Compliance (DOC) and Safety Management Certificate (SMC). Justification: confirms an approved Safety Management System operating.

1. International Ship Security Certificate (ISSC) - ISPS Code (SOLAS Ch. XI-2). Justification: verifies security plan and security measures, relevant to any SOLAS ship including tankers.

1. International Ship Management records and STCW certification of crew (COC/COP endorsements). Justification: confirms crew competence under STCW.

1. Certificate of registry / Certificate of Sea-worthiness (issued by flag/Indian Register of Shipping / Mercantile Marine Dept as applicable for Indian coasting) - verifies nationality and seaworthiness.

1. Medical certificates, MLC 2006 - Maritime Labour Certificate & DMLC Part I & Part II. Justification: verifies seafarer working/living conditions.

1. Minimum Safe Manning Certificate (MSMC) - SOLAS/flag requirement. Justification: confirms the minimum number and grades of crew.

1. Radio license, personnel license, ship station.

1. Continuous Synopsis Record (CSR) - SOLAS Ch. XI-1.

1. Ship Energy Efficiency Management Plan (SEEMP) and EEXI/CII documentation & fuel oil statements - MARPOL Annex VI.

1. Plan of cooperation for SAR and other ship-specific manuals (Fire Control Plan, LSA plan, Emergency Towing Booklet for tankers - SOLAS V/15-1, VDR/S-VDR, LRIT data, GMDSS.)

1. Inert Gas System and Crude Oil Washing (COW) Manual with approved ODMCS (Oil Discharge Monitoring and Control System) onboard documents for tankers - MARPOL Annex I.

1. International Oil Tanker Chemical Data? (not required if not carrying NLS). Also the "Unified Interpretation" documents and the Ship Structure/hull survey (ESP) records for oil tankers - SOLAS (Enhanced Survey Programme).

1. Bunker delivery notes and fuel oil quality records - MARPOL Annex VI.

Justification summary: Each certificate evidences compliance with the specific international convention aimed at protecting life at sea, preventing pollution (oil, sewage, garbage, air, ballast), ensuring crew welfare, security and safe shipping; their validity and records are verified by flag State and port State control.