{"id":25480,"date":"2025-11-05T11:49:08","date_gmt":"2025-11-05T11:49:08","guid":{"rendered":"https:\/\/shipip.com\/?p=25480"},"modified":"2025-11-05T11:49:08","modified_gmt":"2025-11-05T11:49:08","slug":"keeping-your-ihm-up-to-date-what-ship-operators-must-know-in-2025","status":"publish","type":"post","link":"https:\/\/developmenttask.com\/ShipIpLtd\/keeping-your-ihm-up-to-date-what-ship-operators-must-know-in-2025\/","title":{"rendered":"Keeping Your IHM Up-to-Date: What Ship-Operators Must Know in 2025"},"content":{"rendered":"

An effective and continuously maintained Inventory of Hazardous Materials (IHM) is no longer a \u201cnice-to-have\u201d but a core operational and environmental compliance tool<\/strong> for ship-owners and managers. With new regulatory milestones and amendments, it\u2019s vital that vessels are not only certified but keep their IHM live and up to date. At ShipIP Ltd, we support you in both IHM initial certification<\/strong> and its ongoing maintenance<\/strong> through your vessel\u2019s lifecycle.<\/p>\n

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1. Latest regulatory developments you should know<\/h4>\n

Amendment of International Maritime Organization (IMO) Guidelines: Resolution MEPC.405(83)<\/h4>\n

In August 2025 it was reported that IMO adopted MEPC.405(83) which amends the 2023 Guidelines for the development of IHMs. The key change: the threshold for the biocide cybutryne<\/strong> in anti-fouling systems has been lowered from 1,000 mg\/kg to 200 mg\/kg. Lloyd’s Register<\/span>+1<\/span><\/span><\/span><\/a><\/span><\/span>
Ships already holding an IHM must ensure that any new Material Declarations (MDs) prepared on or after 26 June 2025 reference the new format. Lloyd’s Register<\/span><\/span><\/span><\/a><\/span><\/span><\/p>\n

HKC entry into force & IHM deadlines<\/h4>\n

The Hong Kong International Convention for the Safe and Environmentally Sound Recycling of Ships (HKC) comes into force 26 June 2025. Ships \u2265 500 GT must have on board an International Certificate on IHM (ICIHM) or Statement of Compliance not later than 26 June 2030 (or before going for recycling) DNV<\/span>+1<\/span><\/span><\/span><\/a><\/span><\/span>
Existing vessels must also ensure they maintain the IHM properly for their operational life. IIMS<\/span>+1<\/span><\/span><\/span><\/a><\/span><\/span><\/p>\n

Ongoing maintenance requirement<\/h4>\n

It\u2019s emphasised that IHM Part I (hazardous materials in structure\/equipment) must be kept up to date<\/strong> throughout the vessel\u2019s operational life. Changes such as new installations\/removals, hull coatings, equipment replacement must trigger updates. DNV<\/span>+1<\/span><\/span><\/span><\/a><\/span><\/span><\/p>\n

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2. What this means for ship-owners & managers<\/h4>\n