WHS hazardous manual tasks explained: what counts as a hazardous manual task, the risk factors PCBUs must consider, and controls to prevent injury.
Regulatory citation: Model Work Health and Safety Regulations, Part 4.2 (Regulations 60–61)
Part 4.2 of the model Work Health and Safety Regulations requires PCBUs to manage the risk of musculoskeletal disorders (MSDs) associated with hazardous manual tasks. A hazardous manual task is a task that requires a person to lift, lower, push, pull, carry or otherwise move, hold or restrain any person, animal or thing, and that involves one or more risk factors such as repetitive or sustained force, high or sudden force, repetitive movement, sustained or awkward posture, or exposure to vibration.
Body stressing injuries, such as back, shoulder and neck injuries, are among the most common and costly work-related injuries. Many develop gradually through repeated strain rather than a single event, so they need to be managed proactively.
PCBUs must manage risks to health and safety relating to musculoskeletal disorders associated with hazardous manual tasks, using the standard risk management process and the hierarchy of controls.
In determining control measures, PCBUs must consider all relevant matters that may contribute to an MSD, including:
Designers, manufacturers, importers and suppliers of plant and structures must ensure, so far as is reasonably practicable, that their products are designed to eliminate or minimize the need for hazardous manual tasks, and must provide information about safe use.
Observe tasks, talk to workers and review injury data to identify which risk factors are present and how severe they are.
Eliminate or reduce lifting by using mechanical aids such as hoists, trolleys, conveyors and vacuum lifters, and redesign workstations so work is done at waist height within easy reach.
Ask suppliers for smaller or lighter packaging, break up repetitive tasks and introduce job rotation and rest breaks.
Training on safe techniques should support, not replace, higher-order controls, and should be specific to the actual tasks workers perform.
A beverage distributor has repeated shoulder and back injuries among workers loading 20 kg cartons onto high shelves. After consulting workers, the business installs a powered lift table, lowers the highest storage level, asks its supplier to switch to 12-can packs and introduces rotation between picking and loading roles. Injury reports and worker feedback are reviewed three months later to confirm the controls are working.
Note: This summary is based on the model WHS laws published by Safe Work Australia. Most states and territories have adopted them with minor variations, while Victoria has its own OHS laws. Always check the legislation and codes of practice that apply in your jurisdiction.
No. The model WHS Regulations don't set a single maximum weight because risk depends on many factors, including posture, frequency, duration, grip and the working environment. A lighter load lifted repeatedly in an awkward posture can be more hazardous than a heavier load lifted occasionally at waist height.
A musculoskeletal disorder is an injury to, or disease of, the musculoskeletal system, such as sprains and strains, back injuries, joint and bone injuries, nerve injuries and soft tissue injuries. MSDs can result from a single event or gradual wear and tear from repeated or sustained tasks.
No. Training is an administrative control and is less effective on its own. PCBUs should first eliminate or redesign hazardous tasks using mechanical aids, better layout and changes to loads, then use training to support those controls.
This guide is for general information only and is not legal advice. Always check the current text of the regulation with the relevant regulator.
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