Legislative, Duty-of-Care and Regulatory Requirements for High Risk Work
High risk work licensing sits inside a general work health and safety framework. The core idea a candidate must grasp is the layered duty structure: a person conducting a business or undertaking (PCBU) has the primary duty to ensure health and safety so far as is reasonably practicable; officers must exercise due diligence; workers must take reasonable care, follow instructions and report hazards; and other persons at the workplace must not endanger anyone. A materials hoist is classed as high risk work, so the operator must hold the correct licence class and must be trained, competent and authorised for that specific item of plant.
Know the regulator's role: it administers licences, sets competency standards and can impose conditions, suspend or cancel a licence, and issue improvement and prohibition notices. Understand that a licence is personal and non-transferable, must be produced on request, and that operating outside its class or while affected by drugs or alcohol is an offence. Verify licences before allowing anyone to operate.
Traps in questions: confusing the PCBU duty with the worker duty; assuming a licence alone proves competence on a particular hoist; thinking a supervisor's verbal permission replaces a licence; and mixing up the difference between a prohibition notice (stops the activity) and an improvement notice (fixes a contravention).
Rule of thumb: licence plus site-specific induction plus employer authorisation equals lawful operation - any one missing means stop. If you cannot name the duty holder a scenario is describing, ask who controls the activity.