Working at Heights and Fall Protection Under WHS Regulations Part 4.4

Statutory framework - Part 4.4 duties

Part 4.4 of the model WHS Regulations creates specific duties to manage the risk of falls at workplaces. Regulation 78 requires a PCBU to manage risks to health and safety associated with a fall by a person from one level to another. This duty is underpinned by the WHS primary duty (s.19) which requires a PCBU to ensure, so far as is reasonably practicable, that workers and other persons are not exposed to risks.

Regulation 79 requires that, so far as is reasonably practicable, the PCBU provide a safe means of access and egress in any area with a risk of a fall. Where work is to be carried out, the duty is to ensure the work is on the ground or solid construction, with safe means of access where possible. If work cannot be done on a solid construction, fall prevention devices (e.g. guardrails) must be used; if not reasonably practicable, then work-positioning systems; then fall arrest systems. Certain work may require High Risk Work Licences.

The Model Code of Practice: Managing the risk of falls at workplaces provides practical guidance on meeting these duties and is admissible in court proceedings. It offers a framework for identifying hazards, assessing risks, and implementing control measures to minimise the risk of falls.

The 2-metre threshold and high risk construction work

Regulation 291 of the WHS Regulations defines ‘high risk construction work’ as any construction work where there is a risk of a person falling more than 2 metres. This classification triggers specific obligations for persons conducting business activities (PCBUs). Workers undertaking high risk construction work will typically require a White card construction induction.

The requirement for a Safe Work Method Statement (SWMS) is activated by this high risk classification, as outlined in regulation 299. The SWMS must detail the work being performed, identify potential hazards, outline control measures, and explain how these controls will be implemented, monitored, and reviewed. The National Construction Code may also be relevant to the design and construction of structures impacting working at heights.

It is important to note that the 2-metre threshold is a trigger for additional documentation and processes, not a safety limit. While it defines high risk construction work, falls from heights less than 2 metres can still result in serious injury or death and must be appropriately managed. Work must cease if the SWMS is not being adhered to and cannot recommence until compliance is assured.

Hierarchy of fall controls

The hierarchy of fall controls, as outlined in regulation 79, prioritises risk reduction strategies. The most effective approach is to eliminate the risk entirely, for example, by completing the work on the ground or utilising solid construction methods. Where elimination is not reasonably practicable, the next step involves implementing passive fall prevention devices. These include measures such as guardrails, scaffolding, or temporary platforms. Plant safety (WHS Chapter 5) may be relevant in some situations.

Following passive prevention, work positioning systems are considered. These systems, like industrial rope access, maintain workers at height without requiring restraint or arrest. A travel restraint system, comprising a harness and lanyard, is the subsequent control measure, physically preventing a worker from reaching the edge of a fall zone. Hazardous manual tasks (WHS Part 4.2) should be considered if manual handling is involved.

A fall-arrest system, which includes a harness, lanyard with an energy absorber, and a secure anchorage point, is the final option in the hierarchy. This is to be used only when higher-level controls are not reasonably practicable. Any worker utilising a fall-arrest system must receive training on correct harness fit, appropriate anchorage selection, and rescue procedures. An emergency rescue plan is mandatory for all fall arrest work.

Inspection, training and enforcement

Regular inspection and maintenance are critical for fall protection systems. Anchorages used as part of a fall arrest system must adhere to AS/NZS 1891.4 and be inspected at intervals specified by the manufacturer to ensure continued effectiveness. Workers undertaking high-risk work at heights, such as rigging or scaffolding, are required to hold the appropriate High Risk Work Licence (e.g. RB, RI, RA or SB, SI, SA).

Falls from height are a significant safety concern, consistently ranking among the leading causes of construction fatalities. Safe Work Australia data indicates that falls from a height account for approximately 10% of all worker fatalities annually. Any fall, collapse or near miss with a serious injury risk must be reported to the regulator as a notifiable incident under section 38 of the WHS Act. Workers compensation by state may apply in the event of injury.

Regulators actively monitor workplaces and frequently issue prohibition notices for hazards such as unguarded edges, unsafe scaffolds and unprotected roof work. Failure to adequately manage fall risks can result in severe penalties. Individuals found to have acted recklessly (Category 1 offences) may face fines of up to $600,000 and imprisonment for up to 5 years; Industrial manslaughter laws by state should also be considered.