Control of Major Accident Hazards (COMAH)
The Control of Major Accident Hazard (COMAH) regulations mostly apply to chemical sites, but also to places like storage facilities, explosives sites, nuclear plants and other industries, where large amounts of these substances are kept or used.
To ensure the safety of the community, we, as the Local Authority, have a statutory duty to write and test an external plan for sites covered by these regulations.
To ensure the community are aware of what actions to take in the event of a major accident on the site, a safety letter and information is sent out every 5 years to the community around the site. This is known as the Public Information Zone (PIZ).
Public Information for COMAH sites in Cheshire East
Page last reviewed: 28 July 2025
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