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Guidance: DSA 03.OME part 4: Major Accident Control Regulations (MACR)

Ministry Of Defence

September 16
14:42 2024

MACR implements arrangements to achieve results at least as good as those achieved by non-MOD controlled sites which fall within scope of the Control of Major Accident Hazard Regulations 1999 (COMAH) as amended.

These documents are to be used by all members of the armed forces, civilian employees and others, including contractors. It does not replace legislative obligations and full reference is to be made to national and international regulation and legislation, and where applicable host nation. COMAH is UK legislation made under the Health and Safety at Work etc. Act (HSWA) 1974.

These documents have been developed in response to a European Union (EU) Directive (96/82/EC) as amended by EU Directive (2003/105/EC) under the terms of the European Communities Act 1972 and for technical legal reasons cannot be applied to the military forces or defence establishments of member states. However, the established policy of the Secretary of State for Defence, where specific exemption from legislation has been given, is that measures will be introduced by the MOD to achieve as good as or better results than those demanded by statute.

MACR discharges that policy in the context of prevention of a Major Accident (MA) and the mitigation of consequences to human health and or the environment should one occur. The MACR Competent Authority (CA) is empowered by the Second Permanent Under Secretary (2PUS) to introduce and regulate MACR.

Updates to this page

Published 18 June 2020
Last updated 16 September 2024 +show all updates
  1. Updated DSA 03.OME part 4 - Defence Code of Practice: 401 to 408.

  2. First published.

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