If your work creates dust, fumes, vapours, gases or mists, review your airborne-contaminant controls now. New workplace exposure limit arrangements are due to take effect in South Australia, Tasmania and Western Australia from 1 December 2026, but implementation is jurisdiction-specific. As at 14 October 2026, that date is still in the future. Do not treat the transition as one uniform national rule or assume the same exception applies everywhere.
The practical task is to identify the contaminants in your work, check the applicable limit in your jurisdiction, test whether current controls are effective and close any gaps before the relevant commencement date.
A practical readiness sequence
Start with the work actually performed, not just a chemical register. Include cutting, grinding, welding, diesel exhaust, spraying, mixing, cleaning, grain handling and any process that can produce airborne contaminants. Then:
- confirm which airborne contaminants can be generated or released;
- compare each contaminant with the revised limits that apply in your jurisdiction;
- review risk assessments, safety data sheets and safe work procedures;
- check whether elimination or higher-order controls are reasonably practicable;
- confirm whether air monitoring or health monitoring is required and current;
- consult the workers, contractors and labour-hire workers who do or support the work; and
- record actions, owners, due dates and evidence that controls have been checked.
A paper control that is not used on site will not manage exposure. Supervisors should verify the control in the real task: extraction is operating, respiratory protection is suitable and worn correctly, maintenance is completed, and workers understand the procedure.
South Australia
Until 1 December 2026, South Australian workplaces must continue complying with the existing Workplace Exposure Standards for Airborne Contaminants list. The transition is therefore not a reason to pause current WES controls, monitoring or corrective work.
South Australia requires airborne-contaminant risks to be eliminated so far as is reasonably practicable. If elimination is not reasonably practicable, the risk must be minimised using the hierarchy of controls. Review engineering controls, air monitoring, health monitoring and industry-specific exposure risks, especially where construction, agriculture or manufacturing work creates airborne contaminants.
The phosphine exception is narrow
Only South Australia's new phosphine WEL has been deferred. Its commencement, previously due on 1 December 2026, was extended by 18 months to July 2028 following consultation with grain producers. This is a South Australian, substance-specific exception. It does not defer the broader South Australian WEL transition.
Grain-handling businesses and phosphine users should separate the phosphine action plan from their wider WEL plan. Continue current controls and use the additional time for the new phosphine limit to review exposure tasks, control performance, monitoring needs and worker instruction. At the same time, keep preparing for other applicable WELs, including grain-dust risks, on their own timetable.
Tasmania
WorkSafe Tasmania says the WEL requirements commence on 1 December 2026. Before then, businesses should review hazards, risk assessments and controls.
From commencement, a business should be able to demonstrate that it has identified airborne contaminants, checked them against the revised WEL list, put required controls and monitoring in place, and protected contractors and labour-hire workers. Useful evidence includes an updated contaminant register, exposure assessments, monitoring reports, consultation records, control inspections and closed corrective actions.
Tasmanian businesses should give priority to uncertain or changed exposures rather than waiting for perfect information. Arrange competent air monitoring where required and verify that controls work in normal, peak and non-routine tasks.
Western Australia
WorkSafe WA states that Western Australia will transition from WES to WEL from 1 December 2026. The updated limits can affect any WA workplace with airborne contaminants, including mining, agriculture, construction, manufacturing, cold storage and automotive work.
WA readiness should include reviewing chemical inventories, risk assessments, safety data sheets, safe work procedures, control measures, air monitoring, health monitoring and worker consultation. WorkSafe WA has indicated that its compliance activity will focus on readiness before commencement, particularly where exposure limits have changed.
What good readiness looks like
A ready workplace can show a clear line from the contaminant and applicable limit to the task, selected controls, monitoring decision, consultation and verification. Keep this evidence together so a supervisor can explain what changed, what was checked and what still has an owner and due date.
Blue Safe provides compliant WHS documents tailored to the client's activities, applicable Australian WHS/OHS requirements, jurisdiction and industry. Blue Safe guarantees the document compliance of the WHS documents it provides, including eligible customer documents after Blue Safe has reviewed and upgraded them. Operational compliance is achieved and maintained when the business actively and correctly implements the documents, controls, consultation, training, actions, records and evidence.