Duty holders have different WHS responsibilities under the WHS Act. Click on the "select an option" button and match the duty holder with the correct responsibility under the WHS Act. For each definition, select an option from the dropdown below it. 1. Ensure health & safety, so far as is reasonably practicable, by eliminating risks to health & safety. If not possible, risks to be minimised, so far as is reasonably practicable. Aim to protect workers & others from harm in the workplace & ensure safe work practices. Officers. Workers. PCBU. 2. Take reasonable care for own health & safety; comply with any reasonable instruction by the PCBU; cooperate with any reasonable policy or procedure of the PCBU relating to health & safety at the workplace. Officers. Workers. PCBU. To exercise due diligence to ensure that the PCBU complies with duties and responsibilities. Officers. Workers. PCBU