HSR stands for Health and Safety Representatives.
A HSR is the elected representative of workers in a work area who consults with workers on health and safety and advocates on their behalf. The HSR role includes consultation with workers, participation in health and safety decision making, inspection of workplaces, and keeping management held to account for the health and safety impacts of decisions.
They have powers under the various WHS Acts to enter the workplace to inspect it for hazards, refer matters to regulator, to participate in any inspections by regulators, and if necessary to order that work cease. HSRs are afforded strong protection by the legislation, the duties can be conducted during working hours and should be offset through reduction in other work allocations, and they can request the assistance of any person to perform their role. Many HSRs request assistance from the Union.