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COMAH: A Basic Introduction


This course introduces the principles behind the Control of Major Accident Hazards (COMAH) Regulations 2015 and the duties the regulations impose.  It has been designed to provide dutyholders with an understanding of COMAH in order to demystify these regulations.

This course identifies the COMAH duties for lower and upper tier establishments and what needs to be done to comply with them. It also explains the duties that fall to the Competent Authority (CA) and local government.

The course introduces the concept of 'compliant demonstration' and provides an overview of what the CA is looking for.  It will also explain the remodelled COMAH regulatory regime and the national strategic inspection topics.  The course is particularly targeted at lower tier COMAH operators but will also provide valuable background for upper tier operators.

Learning ouctomes

Delegates will be provided with information that will help them to:

  • Understand why COMAH takes its current form
  • Have an overview of the major hazards regulatory regime
  • Know what COMAH duties exist for lower and upper tier establishments and who is responsible
  • Have an overview of the Major Accident Prevention Policy (MAPP)
  • Understand their risk profile and how to control their risks
  • Understand the role of the CA and their interaction with operators

What the course will cover

The course will outline COMAH duties for lower and upper tier establishments and help delegates understand what their roles and responsibilities are to ensure that they are compliant. It will introduce delegates to major accident hazards and the major hazards regulatory regime, and give them an overview of what the MAPP should and shouldn't contain. It will cover COMAH application, including the aggregation rules, duties and notification to the CA. Delegates will also learn about delivering COMAH and how to control their risks by understanding their risk profile. Delegates will also gain some insight into what to expect from inspections, as well as learn where to go for COMAH guidance and further sources of information that they may find useful.

Who should attend?

This course is designed to be delivered in-house to those working in the same organisation, have responsibilities for managing or implementing major accident controls at existing establishments and who want to refresh their understanding of COMAH.

It is also suitable for managers and supervisors of establishments newly brought within scope of COMAH 2015 who may be involved in dealing with the COMAH CA during inspections.


This course can be run for a number of delegates in-house for your company, we don't currently run this as a open course here on site.If you solely wish to attend this course, please look at attending the COMAH Lower Tier open course.

For more information on our in-company training courses, visit our HSE in-company training page.


Please complete the in-company enquiry form with your requirements to enable us to put together a quote for you.

Please note that all courses must be paid for via credit card at the time of booking.

Some of our training courses can also be delivered in-company, please contact us to discuss your requirements.

Telephone: +44 (0)203 028 3704

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