The Occupational Safety and Health Administration (OSHA) published new requirements for the management of explosive hazards in May of 1992. The OSHA Process Safety Management of Highly Hazardous Chemicals regulations (CFR 29, 1910.119) requires operating plants to include facility siting in their process hazards analysis. The focus of these regulations is on toxic, fire and explosion hazards. They mandate, that a Process Hazard Analysis (PHA) must be developed to determine significant risks in operations, and to address personnel protection.
Similar government regulation has not been introduced for Canadian industry. In Canada the guide for Process Safety Management (PSM) is "due diligence" combined with the numerous rules and regulations governing the operations of a chemical manufacturing facility.
The Canadian Major Industrial Accident Coordinating Committee (MIACC) has been instrumental in preparing guidelines for the industry.
CAN/CSA-Q634 Risk Analysis Requirements and Guidelines is used by Canadian industry to manage the risks associated with plant operations.