Major Accident Hazard Understanding

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Major Accident Hazard (noun) a potential source of danger which could cause a Major Accident.


Managing Major Accident Hazards (MAHs) is fundamental to safe operations.  Everyone working in the oil and gas industry, onshore and offshore, has a part to play in managing these hazards.

Resources have been developed to help the whole workforce, boardroom to teashack, understand what a MAH is, how they are identified and how they are mitigated against.

Major Accident Hazard Awareness film packs:  A series of packs to improve understanding of Major Accident Hazards, risk analyses, bowties and SECEs, barrier maintenance and barrier assurance and verification.

Bowtie Exercise: Download resources and instructions to print out and use during a bowtie workshop.

Major Accident Hazard Understanding e-learning module: Targeted at office-based personnel, e.g. logistics, supply chain   

All offshore workers undertake MIST (Minimum Industry Safety Training); a Major Accident Hazard module is contained within this. Recognising that onshore workers play a part in managing Major Accident Hazards, an e-learning module suitable for onshore workers is available.  Step Change in Safety members are able to use this free of charge.  Many companies have now included this as part of their induction process.


Gap analysis tools to identify the training requirements of offshore jobs have been created and can be accessed through this link


Senior leaders workshops have been held to help senior leaders understand their job in managing Major Accident Hazards.  Videos of the speakers at ‘The ROle of Leadership in Managing Major Accident Hazard Risks’ held in September 2019 are available from here:

The Cs of Safety Culture: Steve Rae, Step Change in Safety

Leadership Matters. Prevention of Major Accidents: Chris Flint, HSE

My Role as a Direcector and Leader: Phil Kirk, Chrysaor

The Business Impact of a Major Accident: Lesley Gray, Clyde & Co

Major Accidents - the Human Impact: Jim Maitland, former-OIM, Miller Platform