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COMAH Onshore Major Hazards: Predictive Aspects of COMAH

HSL is to run a 2 day course on COMAH Onshore Major Hazards: Predictive Aspects of COMAH.

Please email your expression of interest


This course is intended for risk assessment specialists and 'intelligent customers' who buy in risk assessment services. It gives an overview of the requirements for the predictive (risk assessment) aspects of a safety report under the Control of Major Accident Hazard Regulations (COMAH) from the point of view of safety.  Information assessed, during both the early predictive assessment and the full assessment, are explained. Common pitfalls and ways to avoid them will be identified. The course gives an overview of different risk assessment approaches, and explains how the approach needs to be selected to be proportionate to the risk.

It is delivered by experienced safety report assessors, and from the point of view of the requirements of the regulator.

The course will cover:

  • The purposes of a COMAH risk assessment
  • Proportionality
  • Key information to include (Schedule 3 of COMAH)
  • Structure of the risk assessment
  • Risk matrix and QRA approaches
  • Input data and uncertainty
  • ALARP demonstration

Who should attend?

Safety professionals and managers who are involved in the co-ordination, writing or updating of COMAH safety reports. Consultants who provide assistance with safety reports.


The course will be run at the HSL laboratory in the spa town of Buxton. Buxton is in the heart of the Peak District and has good links to mainline train stations and Manchester International Airport.

Details of hotels in the Buxton area can be found at


The cost of the course is £1,145 per person (includes course notes, lunch and refreshments).



Please note the invoice option is not available within 4 weeks of the course date, or for overseas customers.  If you are selecting the invoice option for payment, it will be mandatory to input a purchase order/reference number as we are unable to process booking forms without this.

For further dates and additional information email: or contact the Training & Conferences Unit
at HSL directly on +44 (0)203 028 3704.

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Related Information


COMAH - Demystifying COMAH - A Basic Introduction

COMAH: The application of CLP and Aggregation in the COMAH 2015 Regulations

Relevant Publications

L111: A Guide to COMAH regulations

Contact Details

Training & Conferences Unit
Harpur Hill
Buxton, Derbyshire
SK17 9JN

T: +44 (0)1298 218806