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Major hazards (COMAH) (HSE guidance)

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Controlling of Major Accident Hazards (COMAH) in Guernsey

  • The Control of Major Hazards Regulations 2015 (COMAH)

    • These Regulations are the enforcing regulation in the United Kingdom and have been adopted in Guernsey by the Health and Safety Executive.
    • Under the Health and Safety at Work (General) (Guernsey) Ordinance, 1987, a duty holder must, under:
      • Part 1 (1) ensure, "so far as is reasonably practicable, the health, safety and welfare at work of his employees". 
      • Part 2 (2) ensure, "so far as is reasonably practicable, that persons not in his employment who may be affected thereby are not thereby exposed to risks to their health or safety."
  • Compliance

    • If a duty holder complies with the UK Guidance, we would consider that they had discharged their duty under the Guernsey Ordinance adequately
  • The Aim of the Regulations

    • The aim is to  prevent and mitigate the effects on people and the environment of major accidents involving dangerous substances. 
  • How the Regulations Operate

    • The Regulations operate on two levels depending on the establishment's status which is divided into two categories, 'Lower Tier' and 'Upper Tier', determined by inventory. 
      • Lower Tier establishments are required to document a Major Accident Policy which should be signed off by the Managing Director. 
      • An Upper Tire COMAH establishment is required to produce a full safety report which demonstrates that all necessary measures have been taken to minimise risks posed by the site with regard to the environment and local populations. 




Health and Safety at Work (General) (Guernsey) Ordinance 1987 as amended - version 7 September 2020

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