Find out instantly when your vessel’s next Inventory of Hazardous Materials (IHM) survey is due under the Hong Kong Convention and EU Ship Recycling Regulation. Built by Varuna Sentinels BV.
Indicative result only. Final renewal dates depend on flag administration rules, harmonised survey programmes and changes triggered by structural modifications. For a binding plan, schedule a call with the Varuna Sentinels IHM team.
Under the Hong Kong International Convention for the Safe and Environmentally Sound Recycling of Ships (HKC), in force globally since 26 June 2025, every ship of 500 GT and above on international voyages must carry an International Certificate on Inventory of Hazardous Materials (ICIHM), valid for up to five years and renewed at the harmonised renewal survey.
This calculator estimates your next IHM renewal deadline by combining three factors:
The result is indicative. Your continuous IHM maintenance obligation runs throughout the operational life of the vessel — every structural change, equipment swap or hazardous-material substitution triggers an IHM update, regardless of the renewal date.