State-by-State: Drug and alcohol testing obligations for Australian mining operations

Drug and alcohol testing obligations for Australian mining operations are not the same from state to state. Many operators assume that a single national framework governs what is required. That assumption can lead to gaps in compliance, particularly for organisations running sites across multiple jurisdictions.

Each state and territory has its own primary safety legislation for mining. The specificity of drug and alcohol obligations varies considerably. Queensland prescribes detailed rules for alcohol consumption and testing on coal mine sites. Western Australia requires mine operators to manage impairment risks through documented safety management systems under regulations that were overhauled in 2022. New South Wales, South Australia and the Northern Territory each apply their own versions of the harmonised model work health and safety (WHS) framework, but with local differences in how mining-specific duties are expressed and enforced.

This guide provides a jurisdiction-by-jurisdiction breakdown of the drug and alcohol testing obligations that apply to mining operations in the five states where the industry is most concentrated: WA, QLD, NSW, SA and the NT. It covers the legislation that applies, what each jurisdiction requires of mine operators and officers, the Australian Standards that underpin compliant testing and the practical steps needed to build a defensible program across state lines.

The national baseline: Model Work Health and Safety Act

Before examining state-specific legislation, it is important to understand the national foundation. The Model Work Health and Safety Act, administered by Safe Work Australia, applies across most Australian jurisdictions and sets the baseline duty of care for all workplaces, including mines.

Under the Model WHS Act, a Person Conducting a Business or Undertaking (PCBU) must manage risks to health and safety so far as is reasonably practicable. That includes managing hazards caused by drug and alcohol impairment. The Act does not prescribe specific testing methods or frequencies. Instead, it places the obligation on the duty holder to identify, assess and control the risk using measures that are proportionate to the nature of the work.

Officers, which includes company directors and senior executives, have a personal duty to exercise due diligence. In the context of mining, that means taking reasonable steps to understand the drug and alcohol risks on site, verifying that appropriate controls are in place and satisfying themselves that the organisation is meeting its obligations. This is not a passive responsibility. Officers who fail to exercise due diligence face personal penalties, including fines and, in the most serious cases, criminal liability.

Safe Work Australia publishes the Model Code of Practice: Managing the Work Environment and Facilities, which includes guidance on fitness for work. While codes of practice are not mandatory, they are admissible in court as evidence of what is known about a hazard and the means available to manage it. An operator who ignores this guidance does so at legal risk.

The national standards for drug and alcohol testing are AS/NZS 4760:2019 for oral fluid (saliva) testing and AS/NZS 4308:2008 for urine testing. AS 3547:2019 applies to breath alcohol analysers. These standards specify collection procedures, cut-off levels and confirmation requirements. Testing conducted with equipment that is not verified to these standards may produce results that cannot withstand challenge in legal or disciplinary proceedings. 

Western Australia

Western Australia is Australia’s largest mining jurisdiction and the state where this article is likely to have the most immediate relevance. Since 31 March 2022, mining operations in WA have been governed by the Work Health and Safety Act 2020 (WA) and the Work Health and Safety (Mines) Regulations 2022. These replaced the Mines Safety and Inspection Act 1994 and its associated regulations.

This is a critical distinction for compliance leads. Operators who are still referencing the 1994 Act may be relying on a legislative framework that no longer applies. The new regulations align WA with the national model WHS laws, with specific modifications for the mining industry.

Regulation 641 of the WHS (Mines) Regulations 2022 falls under Subdivision 3 (Fitness for work) and specifically addresses alcohol and drugs. Mine operators must manage risks associated with workers being impaired by alcohol or drugs while at the mine. The regulations sit under the broader WHS Act, which applies the PCBU duty of care framework, officer due diligence obligations and worker duties consistently with other harmonised jurisdictions.

WA does not prescribe a specific testing frequency or method at the regulatory level. Instead, mine operators are required to address drug and alcohol risks through their mine safety management system (MSMS). In practice, most WA mine sites operate a zero-tolerance policy requiring a 0.00% blood alcohol concentration for anyone entering the site. Pre-employment, random, post-incident and for-cause testing using both breathalysers and saliva drug test kits is standard across the sector.

The Department of Mines, Industry Regulation and Safety (DMIRS) is the relevant regulator. The Association of Mining and Exploration Companies (AMEC) actively supports fitness-for-work standards in WA mining, including stringent drug and alcohol testing. AMEC has noted that its members enforce regulated fitness-for-work drug and alcohol testing and has supported initiatives to reduce alcohol consumption on mine sites, including restrictions on alcohol availability in fly-in-fly-out accommodation.

Queensland

Queensland is the most prescriptive jurisdiction in Australia when it comes to drug and alcohol obligations in mining. The state distinguishes between coal mining and non-coal mining. The legislative requirements for each are materially different.

For coal mining, the Coal Mining Safety and Health Act 1999 and Coal Mining Safety and Health Regulation 2017 set out detailed requirements that go well beyond the general WHS framework. Under the 2017 Regulation, alcohol may only be consumed in designated accommodation buildings or recreational areas approved by the site senior executive. No person may carry out a work activity or enter a working area of the mine while under the influence of alcohol. Every coal mine must implement a safety and health management system that includes specific controls for alcohol-related risks. These controls must cover the availability and consumption of alcohol on the mine, testing procedures and the response process when a worker is found to be impaired.

The site senior executive carries a personal obligation to consult with a cross-section of workers when developing the fitness-for-work provisions of the management system. This consultation requirement is not optional. It is a legislative duty. Failure to meet it can undermine the enforceability of the policy even if the substance of the policy is sound.

For non-coal mining, the Mining and Quarrying Safety and Health Act 1999 applies. While it is less prescriptive than the coal legislation, it still requires mine operators to identify and manage impairment risks through a documented safety and health management system. Risk assessments must be conducted and controls implemented that are proportionate to the hazards on site.

Resources Safety and Health Queensland (RSHQ) regulates both coal and non-coal mining in the state. Penalties for breaches can be significant, including personal liability for officers and statutory position holders who fail to meet their obligations.

New South Wales

Mining in New South Wales is regulated under the Work Health and Safety (Mines and Petroleum Sites) Act 2013 and the Work Health and Safety (Mines and Petroleum Sites) Regulation 2022, which replaced the 2014 version. The NSW Resources Regulator oversees compliance across both coal and metalliferous mining.

Clause 45 of the 2022 Regulation falls under Subdivision 3 (Fitness for work) and addresses fatigue, alcohol and drugs as an integrated control area. Mine operators must incorporate drug and alcohol management as part of their documented safety management system. The regulation requires risk management systems for fitness for work, covering the identification of impairment risks, the control measures to address them and the procedures for testing and responding to positive results.

The NSW Resources Regulator has published specific guidance identifying the critical control for managing drug and alcohol risks in mining: preventing access to site if a substance is detected through testing or impairment is found on assessment. This framing is important because it positions the control at the point of entry rather than treating it solely as a disciplinary matter after an incident has occurred.

NSW expects mine operators to have documented procedures that address when testing will occur, how it will be conducted, who is responsible for carrying it out, how results will be handled and what support pathways are available for workers who return a non-negative result. Both the coal mining sector (historically regulated under the Coal Mines Regulation Act and its successors) and the broader mining sector now operate under this unified framework. The Coal Services health division has provided drug and alcohol screening services to the NSW coal industry since 1996, conducting testing in accordance with AS/NZS 4308:2008.

South Australia

South Australia regulates mining safety under the Work Health and Safety Act 2012 (SA), with Chapter 10 of the Work Health and Safety Regulations 2012 (SA) addressing mining-specific requirements. SafeWork SA is the relevant regulator and has noted that specific regulations apply to the consumption of alcohol and drugs on mine sites, distinct from general workplace obligations.

SA follows the harmonised Model WHS framework closely. The PCBU duty of care to manage impairment risks applies in full. Officers carry personal due diligence obligations consistent with the national model. Mine operators are expected to implement a risk-based drug and alcohol policy that includes clear definitions of fitness for duty, specifies which substances are covered and outlines the testing methods and triggers that apply.

SA does not prescribe specific testing frequencies at the regulatory level. The expectation is that operators will demonstrate their approach is reasonable, proportionate to the level of risk on site and aligned with the nature of the work being performed. In practice, most SA mining operations adopt testing regimes that mirror those in WA and QLD, including pre-employment screening, random testing and post-incident testing. Worker education and rehabilitation support are expected alongside any enforcement measures.

Northern Territory

The Northern Territory applies the Work Health and Safety (National Uniform Legislation) Act and Chapter 10 (Mines) of the Work Health and Safety (National Uniform Legislation) Regulations. NT WorkSafe administers and enforces the legislation.

As a jurisdiction that closely follows the national model laws, the NT requires mine operators to identify and manage risks associated with drug and alcohol impairment as part of their documented safety management systems. The general PCBU duty of care applies. Officers carry personal due diligence obligations. The NT does not have mining-specific drug and alcohol provisions that go beyond the model framework, but the general obligation to manage fitness-for-work risks is fully enforceable.

Operators should not interpret the absence of highly prescriptive testing rules as an absence of obligation. The risk-based approach still requires a documented policy, clear testing procedures and compliance with Australian Standards for any testing that is conducted. Mining operations in the NT, many of which are in remote locations with fly-in-fly-out workforces, face the same impairment risks as operations in other states and are held to the same standard of care.

Key obligations at a glance

The following table provides a side-by-side comparison of the drug and alcohol testing landscape across the five key mining jurisdictions.

Note: "Prescriptive Level" reflects how specifically the legislation addresses drug and alcohol testing procedures. A "Low" rating does not mean the obligation is weak. It means the legislation is less detailed in its requirements, relying on the general duty of care and risk-based approach. Zero-tolerance figures reflect standard industry practice; individual site policies may vary. Officer liability for due diligence obligations applies across all harmonised jurisdictions.

Building A Compliant Program Across Multiple States

Multi-state mining operators need a testing program that meets the highest applicable standard across every jurisdiction in which they operate. The most practical approach is to start with a single national policy framework that satisfies the most prescriptive requirements (currently Queensland for coal mining), then add jurisdiction-specific addendums where local legislation imposes additional or different obligations.

All testing equipment should be verified to the relevant Australian Standard. For oral fluid testing, that is AS/NZS 4760:2019. For urine testing, AS/NZS 4308:2008 applies. For breath alcohol analysis, AS 3547:2019 is the benchmark. Using equipment that does not meet these standards introduces risk at every level: results may be challenged in disciplinary proceedings, regulatory investigations or Fair Work Commission hearings.

The DrugSense OraScan Cassette V5 is verified to AS/NZS 4760:2019 and supports both saliva and surface drug testing. Each cassette is barcode-tracked, which prevents the use of expired test materials and creates a digital chain of custody from the moment a test begins. When paired with the DrugSense OraScan 3000 Analyser, results are captured digitally with photographic evidence and GPS location data. The analyser stores up to 100,000 records and can export data via USB, Wi-Fi or 4G, making it suited to both remote sites and high-volume operations. A built-in printer produces on-the-spot records that can accompany the worker through any subsequent process.

For breath alcohol testing, the Andatech Prodigy S is a portable workplace breathalyser certified to AS 3547:2019. It is designed for regular and ad-hoc use across shift changes, site entry points and field operations. For organisations managing testing data across multiple states and sites, the Andalink cloud platform provides a centralised system where safety managers can view, download and manage results from breathalysers and drug testing devices. This is particularly valuable for multi-state operators who need to demonstrate consistent compliance across their portfolio.

A compliant program also requires trained testing officers, documented procedures for every testing scenario (pre-employment, random, post-incident and for-cause) and a clear response framework for non-negative results that includes confirmation testing through an accredited laboratory. 

Officer Due Diligence: A Personal Obligation

Personal liability for officers is a consistent feature across all harmonised jurisdictions. Under the Model WHS Act and each state’s adopted version, officers must exercise due diligence to satisfy themselves that the organisation is meeting its health and safety obligations. In the context of drug and alcohol testing, this means officers should be able to demonstrate that they have taken reasonable steps to understand the impairment risks on their sites, that a compliant policy and testing program is in place and that the program is being implemented as documented.

Due diligence is assessed on what the officer knew or ought to have known. An officer who is unaware that a site is not conducting testing, or that testing equipment is not calibrated or standards-compliant, cannot rely on that ignorance as a defence. The penalties for failing to meet due diligence obligations vary by jurisdiction but can include substantial personal fines. In the most serious cases involving reckless conduct that leads to death or serious injury, criminal prosecution is possible.

For organisations operating across multiple states, the practical implication is that officers need visibility over the testing programs at every site. Centralised data management through platforms like Andalink provides this visibility by consolidating test records, calibration status and compliance metrics into a single accessible system.

Getting compliance right across state lines

Drug and alcohol testing obligations in Australian mining are not uniform. Each jurisdiction applies its own legislative framework. The level of prescriptive detail varies from the highly specific (Queensland coal mining) to the broadly principles-based (Northern Territory). For operators managing sites across state borders, the risk of relying on a single generic policy is real: a program that satisfies obligations in one state may leave the organisation exposed in another.

Compliance requires a jurisdiction-by-jurisdiction understanding of the legislation that applies to each site, testing equipment that is verified to current Australian Standards and a documented program that can withstand regulatory and legal scrutiny. The cost of falling short includes regulatory penalties, personal liability for officers, unfair dismissal claims from improperly managed testing processes and preventable safety incidents that put workers at risk.

Andatech works with mining operations across all five jurisdictions covered in this article. Whether you are reviewing your current program, setting up a new site or standardising your approach across multiple states, our team can help you identify the right equipment, align your procedures with the relevant standards and build a program that holds up where it matters.