Health and Safety Executive

This website uses non-intrusive cookies to improve your user experience. You can visit our cookie privacy page for more information.

Social media

Javascript is required to use HSE website social media functionality.

Control of major accident hazards (COMAH)

Chemical plant

The Control of Major Accident Hazards (COMAH) Regulations ensuring that businesses:

"Take all necessary measures to prevent major accidents involving dangerous substances

Limit the consequences to people and the environment of any major accidents which do occur"

The Competent Authority

Harbor area at sunset

The COMAH Competent Authority’s role is to oversee and coordinate the regulation of major hazards in the UK and ensure that the COMAH regime operates effectively.

More about the Authority

Reviewing our approach

Inspectors on site

The COMAH Competent Authority has embarked on a major programme of work to fundamentally review how it operates COMAH regulations.

More about the review

COMAH guidance

Cooling towers

How the COMAH regulations work and the information regulators use to enforce them effectively.

COMAH resources

Working with industry

Process Safety Leadership Group

Sign up to the principles of avoiding risks to people and the environment.

More about the group

Subscribe

Keep in touch with all the latest news from HSE

Social media

Javascript is required to use HSE website social media functionality.

2013-02-06