The Control of Major Accident Hazards (CoMAH) Regulations 2015 apply to operators handling hazardous substances above specific thresholds. Compliance with these regulations ensures that risks to people, property, and the environment are reduced as far as reasonably practicable, in line with the ALARP principle.
Whether you operate a lower or upper tier establishment, CoMAH obligations vary depending on the quantity and type of hazardous substances on site. This includes reporting, documentation, and ongoing risk management. We can also support in compliance with CDOIF MHHHRA methodology.
When CoMAH Applies
CoMAH applies whenever thresholds for storage, production, or processing of hazardous substances are exceeded. Operators must:
- Submit CoMAH notifications to competent authorities.
- Prepare and maintain Major Accident Prevention Policies (MAPP).
- Demonstrate that on-site and off-site risks have been assessed and mitigated.
For site expansions or new builds, a CoMAH notification is required as soon as thresholds are breached. This ensures regulatory compliance and operational safety from the outset.
Key CoMAH Compliance Support Services
OTECSA guides operators through all aspects of CoMAH compliance. Our support includes:
- Major Accident Prevention Policies (MAPP) – creating and reviewing policies to manage hazards.
- Predictive Risk Assessments – identifying potential major accident scenarios.
- CoMAH Notifications – liaising with authorities for accurate reporting.
- Pre-Construction and Pre-Operation Safety Reporting – ensuring risk management is embedded from design to operation.
- 5-Yearly Safety Report Updates – keeping documentation current.
- ALARP Studies – evaluating whether risks are reduced as far as reasonably practicable.
- Consequence Modelling – assessing the potential impacts of major accidents on people and the environment.
Why CoMAH Compliance Matters
Maintaining CoMAH compliance is not just about meeting legal obligations—it protects your workforce, neighbouring communities, and your business. Through robust risk assessments, safety reporting, and MAPP implementation, operators can demonstrate their commitment to safety and regulatory best practice.
Need Support with CoMAH Compliance?
OTECSA’s team of CoMAH consultants can provide tailored support at every stage, from initial notifications to ongoing safety reporting and ALARP assessments. Contact us today to ensure your operations meet legal and safety requirements.
We are always happy to have our proposals compared with other suppliers of COMAH services and are certain due to our strength in numbers and experience we can be competitive on cost and delivery for any project.
This includes other suppliers including: DEKRA, Gexcon, TUV, ABB, Risktec, Arthian, Mabbett, Method, Sigma HSE and IDEA Integro Design Engineering Associates.