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Major hazard facilities

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Major hazard facilities are sites that store, handle and process large quantities of hazardous materials. Facilities include oil refineries, chemical plants and large fuel and chemical storage sites.

Operators of major hazard facilities must:

  • identify all major incidents and major incident hazards for the facility
  • conduct and document a safety assessment of the facility's operation. The assessment must include a comprehensive and systematic investigation and analysis of all aspects of potential risks to health and safety.
  • implement control measures that eliminate or minimise the risk of a major incident occurring
  • prepare an emergency plan
  • establish a Safety Management System
  • prepare a Safety Case. The Safety Case must demonstrate that the Safety Management System will control risks arising from major incidents and major incident hazards. It also needs to assess the adequacy of the measures required to control risks associated with the occurrence of major incidents.


    Organisations or individuals must inform the regulator if they have, or are likely to have, any Schedule 15 chemical in excess of 10 per cent of the threshold quantities. The threshold quantities are set out in Schedule 15 of the Work Health and Safety Regulations 2012 (SA).

    The intent of notification is to ensure that all potential major hazard facilities are made known to the regulator. If a site is determined to be a major hazard facility, the operator must submit an application for a licence, a safety case and evidence of registration of the business within 24 months after the determination.


    Guide for major hazard facilities, Safe Work Australia