Health and Safety Executive

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COMAH Route Map

Will the COMAH Regulations apply to you ?

Flowchart describing process of COMAH Regulations

*ignore dangerous substances which are present only in isolated quantities equal to or less than 2% of the relevant qualifying quantity (in Schedule 1, parts 2 and 3), if their location is such that they cannot initiate a major accident elsewhere on site.

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2010-03-23