Maritime Risk Focus: Inventory of Hazardous Materials (IHM)

Over the last decade international and regional ship recycling legislation has been adopted, some of which is already in force. The IMO Hong Kong Convention and the European Union Ship Recycling Regulation are two key pieces of such legislation. A cornerstone in both the Hong Kong Convention and the EU Ship Recycling Regulation is the Inventory of Hazardous Materials (IHM). The IHM is an important tool when the vessel has reached the end of its useful life and the recycling operation is being planned. It is used when a ship recycling plan is compiled, to ensure minimal environmental impact and safe working conditions in the recycling / scrapping yard.

This Risk Focus provides guidance from UK P&I Club and Marprof to Shipowners when compiling the Inventory of Hazardous Materials (IHM). Addressing important concepts, processes, requirements and the technical aspects of IHM, this publication aims to assist Members’ compliance with the existing ship recycling regulations and reduce the likelihood or reputational risks.

The Inventory of Hazardous Materials (IHM)

Over the last decade international and regional ship recycling legislation has been adopted, some of which is already in force. The cornerstone of this legislation is the IHM, which is based on the same concept as the Green Passport but with two key differences:

Firstly, compiling and maintaining an Inventory of Hazardous Materials is no longer a voluntary requirement, but is mandatory for all ships over 500GT.

Secondly, and crucially, the IHM is expected to be significantly more accurate than the old Green Passport with sampling of unknown hazardous materials expected as standard. This guide aims to explain the key concepts, processes, and requirements of the IHM, based upon guidance materials, experience and best practice.