Scope & Definitions

The Regulation applies to ships on international voyages, of 500 GT and above flying the flag of a Member State or the flag of a third country under the conditions of Article 12 of the Regulation.

The Regulation applies to all vessels of any type whatsoever operating or having operated in the marine environment including submersibles, floating craft, floating platforms, self-elevating platforms, FSUs and FPSOs, as well as ships stripped of equipment or being towed.

It does not apply to any warships, naval auxiliary or other ships owned or operated by a state and used, for the time being, only on government non-commercial service. ‘New’ and ‘existing’ ships, ‘ships going for recycling’ as well as ‘ships flying the flag of a third country’ shall have on board an IHM in accordance with the relevant provisions of Article 5 or Article 12 of the Regulation.



The terms used in this guidance document have the same meaning as those defined in the Regulation and in the IMO guidelines with the following additional definitions which apply for the purposes of this guidance document only

‘IHM process’ is the whole process of development and maintenance of an IHM throughout the operational life-cycle of the ship. It involves all the steps of developing an IHM including issuing/checking of any relevant documentation (e.g. Material Declarations), sampling and analysis, verification and life-cycle management

‘Individual IHM expert’ is a person who has the appropriate training, qualifications and knowledge to conduct HM surveys for the development and maintenance of an IHM. He or she should have experience on ship structure and on handling of HM and sufficient knowledge of how to compile an IHM and of all the relevant international and EU legislation14

‘IHM expert company’ is an entity employing or contracting individual IHM experts to conduct any relevant work or task in relation to the IHM process for the purpose of compiling or updating Inventories of Hazardous Materials. The IHM expert company should use a documented management system and should work on suitable standards, covering the relevant activities of the company


‘HM survey’ is an investigation to trace and identify the presence or absence of Hazardous Materials contained in the equipment, systems, and/or areas on board a ship and may include review of any relevant documents, visual inspections and sampling

‘Sampling check’ is the taking of samples to identify the presence or absence of HM contained in the equipment, systems, and/or areas on board a ship, by suitable and generally accepted methods such as laboratory analysis

‘Representative sampling’ is a method to sample materials of the same kind in a representative manner. Such materials should be checked to ensure that they are of the same kind

‘Blank Sample’ is a clean sample or sample of matrix processed so as to measure artifacts in the measurement (sampling and analysis) process

‘Blind Sample’ is a sample submitted to evaluate performance with concentration and identity unknown to the analyst

‘Bulk Sample’ is a sample taken from a larger quantity (lot) for analysis or recording purposes

‘Specific testing’ is a repeatable and reliable method of testing samples, which can demonstrate definitively whether a Hazardous Material exists or not and provide a known type of the Hazardous Material

‘Accredited laboratory’ is a laboratory accredited in accordance with ISO 17025 or an equivalent standard for the purpose of conducting specific tests for HMs included in the SRR and capable of providing a written report that can be relied upon by all parties.