Inventory of Hazardous Materials (IHM)

The Inventory of Hazardous Materials (IHM) is a mandatory requirement for all superyachts under both the EU Ship Recycling Regulation (EU 1257/2013) and the Hong Kong Convention, which entered into force on 26 June 2025. Once a vessel has a certified IHM Part I, the ongoing obligation is to maintain it accurately throughout the vessel’s operational life. Every material change — refits, equipment replacements, paint system changes — must be captured and the IHM updated accordingly. This complete package provides the maintenance manual, working file, change log, and full appendix set needed to keep your IHM Part I compliant and audit-ready between surveys.

Who Needs This

An IHM is legally required for every superyacht of 500 GT and above operating under the EU Ship Recycling Regulation. This includes all EU-flagged vessels of 500 GT and above regardless of trading area, and all vessels of 500 GT and above — regardless of flag — calling at EU ports, anchorages, or EEA coastal waters. Since the Hong Kong Convention entered into force on 26 June 2025, superyachts engaged in international trading are now subject to the global IHM requirement. Port state control inspections increasingly verify that IHM documentation is not only present but actively maintained. Flag states and classification societies require evidence of ongoing IHM maintenance as a condition of statutory certification. This package is designed for vessels that already hold a certified IHM Part I and need a structured system to maintain it correctly.

What’s Included

IHM Maintenance Manual

The core document of this package — a comprehensive Word document covering the complete IHM maintenance process. Structured in 9 sections covering purpose and scope, regulatory framework, roles and responsibilities, material change procedures, periodic review requirements, documentation standards, record-keeping, audit preparation, and superyacht-specific IHM considerations. The yacht-specific section addresses interior refits with exotic materials, tender bay modifications, helicopter deck recoating, galley equipment replacement, and crew structure for DP assignment. Includes a legal disclaimer, populated revision history template, and references to MEPC.379(80), MEPC.405(83), EU SRR, and the Hong Kong Convention throughout.

IHM Part I Working File

An Excel workbook in the standard IMO format with three dedicated sheets: Part I-1 (Paints and Coating Systems), Part I-2 (Equipment and Machinery), and Part I-3 (Structure). Each sheet includes data validation dropdowns for all Table A and Table B materials (including PFOS and HBCDD), a dedicated Unit column with dropdown validation (kg, m², m³, Ci, litres, pcs per MEPC.379(80) §4.7), and numeric validation on quantity fields. The structure is ready to receive your surveyed materials inventory.

IHM Maintenance Plan

An IMO example procedure document (PDF) providing the reference framework for how IHM maintenance should be conducted. Use this alongside the Maintenance Manual as the procedural backbone for your vessel’s IHM upkeep programme.

IHM Change Log

A dedicated Excel workbook for tracking every material change to the vessel that affects the IHM. Includes columns for date, item, location, Part I affected, MD (Y/N), MD Ref No., SDoC (Y/N), SDoC Ref No., signature, and notes — providing full traceability from each change to its supporting documentation per MEPC.379(80) §5.2.3.

IHM Documentation Archive Index

An Excel workbook for cataloguing all supporting documentation with full MEPC.379(80)-compliant columns: Date, Item, Supplier Name, Product/Equipment Name, Part I ID, MD (Y/N), MD ID No., SDoC (Y/N), SDoC ID No., and Notes. Cross-references supporting records per §6.2.1 and §7.2.1. Both the Change Log and Archive Index include retention notes per EU SRR Article 5(3).

Material Declaration (MD) and Supplier Declaration of Conformity (SDoC) Templates

Standalone editable Excel templates matching the IMO standard forms from MEPC.379(80) Appendix 6 (MD) and Appendix 7 (SDoC). Pre-formatted with all Table A and Table B materials, supplier information fields, and declaration sections. Ready to issue to suppliers and contractors during refits.

Appendices A–H

Nine PDF appendices plus cover notes providing the reference material cited in the Maintenance Manual. Includes the full Hong Kong Convention text, EMSA guidance on IHM, Table A/B materials lists with an amendment note covering the revised cybutryne threshold (MEPC.405(83)), EU SRR items, IHM sample formats, and placeholder appendices for the certified IHM and archive index.

Regulatory Compliance

This IHM maintenance package is structured to meet the ongoing maintenance obligations under EU Ship Recycling Regulation 1257/2013 and the Hong Kong International Convention for the Safe and Environmentally Sound Recycling of Ships, 2009. The documentation aligns with IMO Resolution MEPC.379(80) guidelines for IHM development and maintenance, and incorporates the amendments introduced by MEPC.405(83). The package is designed to satisfy the maintenance and record-keeping evidence expected during port state control inspections, flag state audits, and classification society surveys.

How to Use

1. Download all files immediately after purchase
2. Read the IHM Maintenance Manual in full before making any changes to your existing IHM
3. Set up the IHM Part I Working File with your vessel’s current certified IHM data
4. Establish the Change Log and Documentation Archive Index as active records
5. Follow the Maintenance Manual procedures whenever materials are added, removed, or altered
6. Use the appendix forms to document each material change with the required evidence trail
7. Conduct periodic reviews as specified in the Maintenance Manual
8. Present the complete maintenance documentation set to your recognised organisation at each survey
9. Keep all records onboard alongside the certified IHM for port state control inspection

Why Choose Our Package

This package was developed with direct reference to MEPC.379(80), MEPC.405(83), the Hong Kong Convention, and EU Ship Recycling Regulation 1257/2013. Where most IHM products focus only on initial compilation, this package addresses the ongoing maintenance obligation that every vessel faces after certification. The Maintenance Manual provides clear, practical procedures — not regulatory language — for keeping the IHM current through refits, equipment changes, and routine maintenance. The working file, change log, and archive index give you a complete, auditable documentation system that surveyors and inspectors expect to see. As regulatory requirements evolve, this package will be updated and existing customers will receive revisions at no additional cost.

Important Notice

This package provides templates and guidance requiring vessel-specific customisation. It is not certified, approved, or endorsed by any maritime authority, classification society, or recognised organisation. The buyer bears sole responsibility for ensuring regulatory compliance and is advised to have all completed documentation reviewed by a qualified marine surveyor or recognised organisation. Where flag state or classification society approval is required, the buyer is responsible for obtaining it. Templates reflect regulations current as of the purchase date.