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Process Safety Consulting
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    • Home
    • Consultancy
      • Hydrogen Consulting
      • Functional Safety
      • Hazard and Risk
      • COMAH Consulting
      • DSEAR Consulting
      • Process Safety Management
      • Mentoring
      • Technical Due Diligence
    • Hazard Studies
      • HAZOP
      • LOPA
      • QRA - Risk Assessment
      • Occupied Buildings
      • Major Accident Hazards
      • HAZID
    • Training
    • Intelligent Customer
    • Contact Us

01971558279


  • Home
  • Consultancy
    • Hydrogen Consulting
    • Functional Safety
    • Hazard and Risk
    • COMAH Consulting
    • DSEAR Consulting
    • Process Safety Management
    • Mentoring
    • Technical Due Diligence
  • Hazard Studies
    • HAZOP
    • LOPA
    • QRA - Risk Assessment
    • Occupied Buildings
    • Major Accident Hazards
    • HAZID
  • Training
  • Intelligent Customer
  • Contact Us

COMAH Safety Report

COMAH Safety Case

To comply with the COMAH Regulations, upper tier sites are required to submit a COMAH Safety Report and to re-review the report upon change or at 5 yearly interval. The COMAH Safety Report is a narrative of how major accident hazards are identified, risk assessed and have their risks managed to as low as reasonably practicable. The COMAH Safety Report should, therefore, align with the organisations Process Safety Management System (PSMS).  


Our consultants have been helping businesses meet their COMAH requirements for decades and can help you create a tailored COMAH Safety Report that meets your specific needs. Get in touch with us today to learn more about how we can help you prepare, create or re-review a COMAH Safety Report. 


But more than just providing a transactional service, we are committed to helping you in the long-term. We seek to use the project as an opportunity to coach and mentor the staff of your organisation, building their competence, confidence and understanding of COMAH. Let us be your partner in this process, and together, we can make sure your organisation is equipped with the right tools and knowledge. 

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COMAH report challenges

When preparing COMAH Safety reports operating sites are faced with a number of challenges. These include. 

  • Resource availability. 
  • Timeframes to deliver. 
  • Understanding technical and legal jargon from the Health and Safety Executive and EA. 
  • Demonstrating that they have identified all potential major accident hazards (MAH).
  • Providing fire, explosion and consequence modelling to support the safety case. 
  • How to produce a COMAH Risk Assessment or CDOIF MATTE Assessment. 
  • Ensuring that individual risk and societal risk is presented in the report. 
  • Linking the risk assessment to the technical measures present and demonstrating the risks are as low as reasonably practicable (ALARP)

COMAH Safety report guidance

The purpose of the COMAH Safety Report is to communicate to the Health and Safety Executive and Environment Agency that the risks to people and the environment have been reduced to As Low as Reasonably Practicable. This involves. 


  1. Presenting details of the site and surrounding areas (Descriptive Aspects)
  2. Identifying the sites major accident hazards and assessing their risks (Predictive Aspects). 
  3. Documenting the organisational measures in place to manage risks (MAPP and SMS Aspects)
  4. Documenting the technical measures in place to manage risks (Technical Aspects)
  5. Identifying the sites Major Accidents to the Environment (MATTE) and assessing the risk (Environmental Aspects). 
  6. Emergency Planning Arrangements (Emergency Aspects)


Each of the above is assessed by the competent authority using safety report assessment manuals (SRAM) and safety report assessment guides (SRAG). which can be found at COMAH - The Competent Authority (hse.gov.uk) 


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