To ask the Secretary of State for Work and Pensions what guidance her Department issues to the relevant authorities on the extent of areas in which persons are liable to be affected by a major accident occurring at (a) large-scale petrol storage depots and (b) onshore non-nuclear major hazard installations. (280621)

Under Regulation 10 of the Control of Major Accident Hazards Regulations 1999 (as amended) (‘COMAH’) the duty to supply local authority emergency planners with the information necessary for them to prepare an off-site emergency plan, including the extent of areas in which persons are liable to be affected by a major accident, rests with the site operator.

To assist operators and others in complying with their duties under COMAH the competent authority has published the following guidance:

L111—“A guide to the Control of Major Accident Hazard Regulations 1999 (as amended)”;

HSG 191 “Emergency planning for major accidents”; and,

“COMAH—What you should know”—a public information leaflet available on the HSE website.