This information sheet provides persons conducting a business or undertaking (PCBUs) information on fire danger ratings and warnings and how they can be used in their risk assessment for bushfires.
https://www.safeworkaustralia.gov.au/sites/default/files/2023-12/identifying_and_assessing_the_risk_of_bushfires_at_work_-_using_fire_danger_ratings_and_warnings_information_sheet2.pdf