IHM Compliance for Marshall Islands Flag Vessels

Complete Inventory of Hazardous Materials maintenance and Hong Kong Convention guidance for the third-largest open registry (~5,000 vessels, ~190M GT). Continuous IHM Part I, II & III updates aligned with HKC, EU SRR and MEPC.405(83) — powered by Varuna Sentinels’ VSIMS platform.

HKC Party ICIHM Required MEPC.405(83) Compliant

Marshall Islands Flag — Key IHM Compliance Facts

Marshall Islands ratified the Hong Kong Convention. Below are the regulatory pillars every Marshall Islands-flagged ship operator should track in 2026.

Third-largest open registry by tonnage; one of the fastest-growing flags.

Hong Kong Convention party — full IHM compliance required from 26 June 2025.

Recent Port State Control detentions of Marshall Islands-flagged vessels have highlighted IHM compliance as a top enforcement priority.

IRI Marine Notice 2-011-50 covers IHM and ship recycling responsibilities.

Continuous IHM maintenance is the documented expectation of the administrator.

IHM Part I, II & III — Marshall Islands Flag Specifics

IRI publishes formal Marine Notices on IHM development and maintenance obligations. PSC detention case studies (notably 2025 incidents) demonstrate that incomplete or stale IHM Part I is sufficient grounds for vessel detention under HKC.

How Varuna Sentinels supports the Marshall Islands fleet

Our cloud-based VSIMS platform delivers continuous IHM Part I maintenance, automated MEPC.405(83)-compliant Material Declarations, IHM Part II & III preparation for end-of-life events, and audit-ready evidence packs for Port State Control inspections. We coordinate with your Recognised Organisation, classification society and recycling yard from the first survey to the final IRfRC.

Marshall Islands Flag IHM — Frequently Asked Questions

Why are Marshall Islands-flagged vessels being detained for IHM issues?
Following HKC entry into force, Port State Control regimes have intensified IHM checks. Marshall Islands ships with stale or missing Part I records have been detained. Continuous IHM maintenance via VSIMS prevents these events.
What is the IRI Marine Notice for IHM?
IRI publishes Marine Notice 2-011-50 covering Inventory of Hazardous Materials and ship recycling. The notice references MEPC Resolution 379(80) and the latest amendments.
Is the Marshall Islands flag party to the Hong Kong Convention?
Yes. The Marshall Islands deposited its instrument of ratification well before 2025 and the convention entered into force for the flag on 26 June 2025.
How does Varuna Sentinels help Marshall Islands operators stay compliant?
VSIMS automates Material Declaration ingestion, provides MEPC.405(83) compliant templates, monitors renewal deadlines and produces audit-ready evidence packs for PSC inspections.
Do Marshall Islands ships need a Ship Recycling Plan?
Yes — when a vessel approaches end of life, a Ship Recycling Plan (SRP) approved by an RO is required, alongside IHM Parts II and III, before issuance of the International Ready for Recycling Certificate (IRfRC).

Related Resources

Get a Tailored Marshall Islands Flag IHM Compliance Plan

Book a 30-minute call with our IHM specialists. We will review your fleet’s flag-state obligations, current IHM status, and the fastest path to continuous compliance with HKC, EU SRR and MEPC.405(83).

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