The transport and logistics industry operates under one of Australia’s most demanding regulatory frameworks when it comes to driver safety and impairment. The Heavy Vehicle National Law (HVNL) and its Chain of Responsibility provisions impose obligations that extend well beyond the driver — reaching into every level of the supply chain.

For transport operators, freight companies, and logistics providers, a robust drug and alcohol testing program is not merely good practice. It is a critical component of regulatory compliance and a direct expression of your duty to prevent impaired driving on Australian roads.

Understanding Chain of Responsibility

The Chain of Responsibility (CoR) framework, administered by the National Heavy Vehicle Regulator (NHVR), recognises that parties other than the driver can influence on-road safety outcomes. Under the HVNL, every party in the supply chain — from consignors and loaders to schedulers and operators — has a legal duty to ensure their actions do not contribute to breaches of heavy vehicle safety laws.

This includes breaches related to driver fatigue and impairment. If a driver is found to be impaired by drugs or alcohol and the investigation reveals that the operator’s systems failed to detect or prevent the impairment, the operator — and potentially other parties in the chain — can face significant penalties.

Who Is Captured by CoR?

• Employers and operators — the company that engages or employs the driver.
• Prime contractors — the principal party in a transport contract.
• Schedulers — parties who schedule the transport task, including delivery windows.
• Consignors and consignees — parties who send or receive goods.
• Loaders and unloaders — parties responsible for loading or unloading the vehicle.

The breadth of these obligations means that drug and alcohol testing is relevant to a far wider group of organisations than transport companies alone.

Fatigue and Impairment: The Overlap

In transport, drug and alcohol impairment does not exist in isolation. It frequently overlaps with fatigue — and the two together represent the most significant risk factors for heavy vehicle incidents on Australian roads.

Stimulant use, in particular, has a long and well-documented history in the Australian road transport industry. Some drivers use amphetamines or methamphetamine to combat fatigue and extend their driving hours. While this may delay the onset of tiredness in the short term, it ultimately increases accident risk through impaired judgement, erratic behaviour, and severe fatigue during the crash period that follows stimulant use.

Your drug and alcohol testing program should be designed with this overlap in mind. Random testing that covers both drugs and alcohol, combined with robust fatigue management systems, provides a more complete approach to managing driver impairment risk.

Driver Testing Logistics

Testing drivers presents unique logistical challenges that office-based programs do not encounter:

Location and Timing

Drivers are, by definition, mobile. They may start their shift at a depot, a customer’s premises, or a rest area hundreds of kilometres from the nearest office. Random testing must account for this mobility. Common approaches include:

• Depot-based testing — testing drivers as they arrive at or depart from depots. This is the most practical approach for organisations with centralised operations.
• In-field testing — sending collectors to meet drivers at customer sites, rest stops, or distribution centres. This is necessary for long-haul operations where drivers may not return to a depot for days.
• Pre-start testing — conducting testing at the beginning of each shift. While effective, this can create delays and is not always practical for early-morning departures.

Oral Fluid as the Preferred Method

Oral fluid testing has become the standard in transport for good reason. It is portable, non-invasive, does not require toilet facilities, and detects recent drug use — which is most relevant to whether the driver is fit to operate a heavy vehicle right now. It aligns with the approach taken by roadside drug testing conducted by police across all Australian jurisdictions.

Managing Owner-Drivers and Subcontractors

Many transport operations rely on a mix of employed drivers and owner-drivers or subcontractors. Under CoR, the operator’s obligations extend to all drivers performing transport tasks on their behalf. Your testing program must include these drivers, which requires clear contractual provisions and practical arrangements for collection.

Pre-Employment and Random Testing

Pre-Employment Screening

Pre-employment drug testing is standard practice in the transport industry and serves as a critical first filter. Given the safety implications of placing an impaired driver behind the wheel of a heavy vehicle, there is a strong argument that pre-employment testing should be mandatory for all driving roles.

Urine testing is commonly used for pre-employment screening due to its longer detection window, which provides a broader picture of the candidate’s recent substance use. Some operators supplement this with oral fluid testing.

Random Testing Programs

Random testing is the primary ongoing mechanism for deterring and detecting substance use among active drivers. Key design considerations for transport include:

• Selection frequency — the NHVR recommends that operators implement random testing at a frequency sufficient to create a credible deterrent. The appropriate frequency depends on your fleet size, risk profile, and operational patterns.
• Pool management — your selection pool should include all active drivers, including owner-drivers and subcontractors. It should be updated regularly to reflect drivers who have joined or left the fleet.
• Notification and collection — define how selected drivers will be notified and where and when the collection will occur. For long-haul drivers, this may require flexibility in collection timing and location.
• Documentation — every selection event must be documented, including the pool composition, the selection method, the notification process, and the outcome.

NHVR Guidance and Enforcement

The NHVR has published guidance on drug and alcohol management as part of its broader approach to CoR compliance. While the NHVR does not prescribe a specific testing frequency or method, it expects operators to demonstrate that they have systems in place to manage impairment risk.

In an investigation following a serious incident, the NHVR will examine whether the operator had:

• A documented drug and alcohol policy.
• A system for conducting and recording drug and alcohol tests.
• Evidence of regular random testing.
• Processes for managing positive results and return-to-work.
• Integration between drug testing and fatigue management systems.

Penalties under the HVNL for CoR breaches are substantial and can include fines for individuals and corporations, as well as court-ordered compliance measures.

Building a Compliant Program

For transport and logistics operators, a compliant drug and alcohol testing program requires more than occasional testing. It requires a documented system that covers all drivers, operates on a genuinely random basis, produces an auditable trail, and integrates with your broader safety management framework.

If you are managing drug testing across a fleet of drivers — whether employed, contracted, or a mix of both — FairTest gives you the tools to maintain compliance under CoR. From automated random selections across dispersed workforces to digital records that stand up to regulatory scrutiny, it is designed for the realities of transport. Start your free trial today.