369Safety assessment

369 Safety assessment

(1) The operator of a major hazard facility must conduct a comprehensive and systematic safety assessment, in accordance with this regulation, in relation to all potential major incidents and all major incident hazards.

(2) A safety assessment must involve an investigation and analysis of the major incident hazards and major incidents so as to provide the operator with a detailed understanding of all aspects of risks to health and safety associated with major incidents, including the following—

(a) the nature of each major incident hazard and major incident;

(b) the likelihood of each major incident hazard causing a major incident;

(c) in the event of a major incident occurring—

(i) its magnitude; and

(ii) the severity of its consequences to persons both on-site and off-site;

(d) the range of risk control measures considered.

(3) In conducting a safety assessment, the operator must—

(a) consider major incident hazards and major incidents cumulatively as well as individually; and

(b) use assessment methods (whether quantitative or qualitative, or both) that are appropriate to the major incident hazards being considered.

(4) The operator must document all aspects of the safety assessment and the documentation must—

(a) describe the methods used in the investigation and analysis; and

(b) state all the matters specified in subregulation (2)(a) to (d); and

(c) contain reasons for decisions as to the matters specified in subregulation (2)(b) and (c); and

(d) contain, in relation to the range of risk control measures considered—

(i) statements as to their viability and effectiveness; and

(ii) reasons for selecting certain risk control measures and rejecting others.