Major Hazard Facilities (MHF) are locations that store above threshold quantities of chemicals listed in schedule 15 of the Work Health and Safety Regulation 2011 or are determined as a MHF after an inquiry process.
They are places such as oil refineries, chemical plants and large fuel and chemical storage sites where large quantities of hazardous materials are stored, handled or processed. In Queensland, MHFs also include facilities that store above threshold quantities of explosives and undertake some processing activity.