HSE website – HSE’s portal for information and consultation
eMARS website – The European Major Accident Reporting System (MARS and later renamed eMARS)
COMAH – HSE’s dedicated pages for the Control of Major Accident Hazard Regulations
REACH – HSE’s pages on the Registration, Evaluation, Authorisation & restriction of CHemicals
Process Safety Events – a relational database and online resource to help duty holders learn from previous incidents.