Hazardous Chemical Risk Assessment (Australia)
Czym jest Hazardous Chemical Risk Assessment (Australia)?
A Hazardous Chemical Risk Assessment in Australia is a legally binding written instrument.
The assessment is legally required by reg 336 of the WHS Regulation 2017 for all persons conducting a business or undertaking (PCBUs) that use, handle, generate, or store hazardous chemicals at the workplace. A hazardous chemical is defined by reference to the Globally Harmonised System of Classification and Labelling of Chemicals (GHS) as adopted in Australia through Schedule 7 of the WHS Regulation 2017 — any substance, mixture, or article satisfying the criteria for a GHS hazard class (including flammable liquids, acute toxins, carcinogens, respiratory sensitisers, and corrosives) is a hazardous chemical for the purposes of Australian WHS law.
The risk assessment must be based on the chemical's current Safety Data Sheet (SDS), which every manufacturer or importer of a hazardous chemical in Australia must prepare and provide under reg 330 of the WHS Regulation 2017. The SDS is a standardised 16-section document containing the GHS hazard classification, physicochemical properties, workplace exposure limits, health effects, first aid measures, firefighting procedures, spill response, handling and storage requirements, and toxicological data.
The WHS Regulation 2017 imposes additional obligations linked to the risk assessment. Regulation 337 requires atmospheric monitoring to be conducted where it cannot be confirmed that workers' airborne exposure is below the applicable Workplace Exposure Standard published by Safe Work Australia. Monitoring must be carried out by a NATA-accredited laboratory. Regulation 368 requires health monitoring for workers exposed to Schedule 14 chemicals — including lead, inorganic mercury, organophosphate pesticides, and isocyanates — where there is a reasonable likelihood of exposure at or above the health monitoring trigger level. Health monitoring must be conducted by a registered medical practitioner with occupational medicine experience. State WHS regulators — including SafeWork NSW, WorkSafe Victoria, Workplace Health and Safety Queensland, and WorkSafe WA — enforce Chapter 7 compliance and may conduct workplace inspections, issue improvement notices, and pursue prosecutions under the WHS Act 2011 (Cth) or state equivalents. Forms-legal.com provides this template as a starting point for Australian WHS compliance documentation.
Kiedy potrzebujesz Hazardous Chemical Risk Assessment (Australia)?
A hazardous chemical risk assessment under Chapter 7 of the WHS Regulation 2017 (Cth) is required in a range of specific circumstances that arise regularly in Australian workplaces handling chemicals.
Introduction of a new chemical: Before any hazardous chemical is first used, handled, or stored at a workplace, reg 336 requires the PCBU to assess the risks. The assessment must be completed — and appropriate controls implemented — before workers are exposed to the substance. The SDS for the chemical must first be obtained from the manufacturer or supplier under reg 330.
Change in method of use: A new risk assessment is required whenever the manner of use changes significantly. Switching from manual application (brushing) to spray application of a solvent-based product, for example, dramatically increases inhalation exposure and may require new engineering controls (local exhaust ventilation) and updated PPE that were not previously necessary.
Substitution of one product for another: Where a PCBU substitutes a different chemical product for an existing one — even if the two products appear similar — the hazard classification, WES, and control requirements of the replacement must be assessed separately, as formulations can differ significantly in hazard profile.
Periodic review: Under reg 340 of the WHS Regulation 2017, the PCBU must review the risk assessment and revise it as necessary whenever: the controls are no longer effective; the PCBU becomes aware that the assessment is no longer valid; there is a change in the work, workplace, or workers; or a health and safety representative requests a review. Best practice is to review all chemical risk assessments at least annually, even in the absence of a trigger event.
Atmospheric monitoring results: Where a monitoring result approaches or exceeds the Safe Work Australia Workplace Exposure Standard — whether the time-weighted average (TWA), short-term exposure limit (STEL), or ceiling value — the risk assessment must be revised and additional controls implemented.
Health monitoring triggers: Where a health monitoring result for a Schedule 14 chemical under reg 368 suggests that a worker has been exposed above the health monitoring trigger level, the risk assessment must be reviewed immediately and the relevant state WHS regulator notified as required.
Workplace incident or near miss: Following any incident or near miss involving a hazardous chemical — including a spill, accidental exposure, fire, or suspected health effect — the risk assessment must be reviewed to determine whether control failures contributed to the event and what additional measures are required to prevent recurrence.
Co powinien zawierać Hazardous Chemical Risk Assessment (Australia)
A compliant hazardous chemical risk assessment under Chapter 7 of the WHS Regulation 2017 (Cth) must address the following elements to satisfy the requirements of regs 330–368 and the Safe Work Australia Code of Practice: Managing Risks of Hazardous Chemicals in the Workplace.
Chemical identification: The product name, manufacturer/supplier name, SDS version date, and UN number (if applicable). The SDS must be current — Safe Work Australia recommends that SDSs be reviewed every five years or when significant new information becomes available.
GHS hazard classification: From SDS Section 2, all hazard classes and categories applicable to the chemical must be recorded, including the signal word (Danger or Warning), hazard statements (H-codes), and precautionary statements (P-codes). The GHS classification determines the appropriate controls and storage requirements.
Exposure assessment: All routes of exposure — inhalation, skin absorption, eye contact, and ingestion — must be assessed. For inhalation exposure, the assessment must compare the likely airborne concentration against the applicable Safe Work Australia Workplace Exposure Standard (TWA, STEL, and ceiling value where applicable). Where atmospheric monitoring under reg 337 has been conducted by a NATA-accredited laboratory, the results must be recorded.
Risk rating: A qualitative or semi-quantitative risk rating using a likelihood-by-consequence matrix, assessed both before controls (inherent risk) and after controls (residual risk), to demonstrate the effectiveness of the control hierarchy.
Control measures: Controls must be selected in the hierarchy order required by reg 338: elimination (remove the chemical entirely), substitution (replace with a less hazardous product), isolation (enclose the process or use a fume cupboard), engineering controls (local exhaust ventilation, enclosed systems), administrative controls (safe work procedures, job rotation, exposure time limits), and personal protective equipment as a last resort. PPE specifications must reference the relevant Australian Standards (e.g., AS/NZS 1715 for respiratory protective equipment, AS/NZS 2161 for industrial safety gloves).
Health monitoring: For Schedule 14 chemicals under reg 368, health monitoring requirements must be documented, including the type of monitoring required, the monitoring frequency, and the responsible registered medical practitioner.
Emergency procedures: Spill response, fire-fighting procedures, and first aid measures consistent with SDS Sections 4, 5, and 6, including reference to the relevant state poisons information centre and emergency services.
Storage requirements: Storage conditions, segregation from incompatible chemicals, and manifest obligations for prescribed quantities under reg 354 and Schedule 15 of the WHS Regulation 2017.
Sign-off and review date: The assessment must be signed by the qualified assessor and an approving officer, with a scheduled review date. Forms-legal.com provides this template as a starting point for Australian WHS chemical risk management documentation.
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This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer
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