What Triggers an NHVR Investigation? How the Investigation Process Works, Chain of Responsibility (CoR) Exposure; Potential Outcomes

In this article

1. Common Triggers for an NHVR Investigation
2. How Does the NHVR Decide Which Matters to Investigate?
3. The NHVR Investigation Process Step by Step
4. Your Chain of Responsibility (CoR) Exposure
5. What Are the Maximum Penalties for Primary Duty Offences?
6. Potential Outcomes of an NHVR Investigation
7. Frequently Asked Questions
8. Speak With Eric Before You Respond

What triggers an NHVR investigation? Usually a sign of serious safety risk: a roadside breach, a crash causing death or serious injury, a report to the Heavy Vehicle Confidential Reporting Line (HVCRL), camera or data analysis, a referral from police or another agency, or a pattern of non-compliance. The National Heavy Vehicle Regulator (NHVR) focuses its investigations on serious breaches of the Heavy Vehicle National Law (HVNL), especially the primary safety duty owed by Chain of Responsibility (CoR) parties and their executives.

This guide explains the common triggers, how the investigation process works step by step, how a single breach can widen into CoR exposure for a business and its directors, and the outcomes that can follow.

Common Triggers for an NHVR Investigation

The NHVR’s Primary Duty Investigations Policy and its Compliance and Enforcement Policy set out where its matters come from. The main sources are:

• Roadside intercepts and breaches. Intercepts, site inspections and operations, including joint operations with police, detect breaches. A breach can raise questions about the business behind the truck. See how NHVR breaches are categorised.
• Crashes and serious incidents. Heavy vehicle incidents causing death or serious injury are a stated priority.
• Heavy Vehicle Confidential Reporting Line tips. Drivers and supply chain workers can report unsafe practices on 1800 931 785. Each report is triaged and risk-assessed, and can lead to education, a warning or compliance action, up to prosecution.
• Cameras and data analysis. The NHVR uses data analysis, camera networks and electronic work diaries. Its mobile automatic number plate recognition (ANPR) cameras on NSW freight corridors flag potentially high-risk vehicles and operators.
• Audits, accreditation and telematics. Compliance reports, approved telematics and monitoring of enforceable undertakings and court orders are all information sources. From 1 August 2026, accreditation is moving from the National Heavy Vehicle Accreditation Scheme (NHVAS) to the new Heavy Vehicle Accreditation (HVA) scheme.
• Referrals from police and other agencies. Offences detected by other agencies, and reports from partner agencies or Members of Parliament, can start a matter.
• Patterns of breaches. NHVR intelligence analysts look for likely systematic contraventions, and one investigation can uncover others.

How Does the NHVR Decide Which Matters to Investigate?

The NHVR says that “not all incidents or allegations will result in a primary duty investigation”. Matters are triaged in proportion to the risk.

Priority goes to fatalities, serious injuries, high-risk parties and primary duty breaches by CoR parties and their executives. Prescriptive offences, such as fatigue or mass breaches, come next, especially where there is previous or ongoing non-compliance.

When deciding whether to investigate, the NHVR considers:

• the seriousness of the conduct, the risk it created and whether it is ongoing
• whether an investigation is a proportionate response
• earlier regulatory responses and any history of non-compliance
• whether there are victims, and the level of public concern.

The NHVR Investigation Process Step by Step

Every matter is different, but investigations generally move through these stages.

1. Assessment and triage. The NHVR decides whether an investigation is warranted.
2. Notice that you are being investigated. You should be told that an investigation into your transport activities is ongoing. Investigators are Authorised Officers under the HVNL.
3. Gathering evidence. Investigators gather admissible evidence for each element of an offence, including evidence that helps you.
4. Statutory notices. Investigators can require documents or information by notice under sections 569, 570 or 570A of the HVNL. Failing to comply is an offence. Our guide on how to respond to an NHVR notice explains what to check before you reply.
5. Entry and inspection of premises. Investigators may enter business premises, with or without consent, seize things and require reasonable help.
6. Questioning and interviews. In one NHVR operation, investigators questioned company executives and others in the chain about fatigue management, loading, training and vehicle maintenance.
7. Search warrants. The NHVR has executed search warrants at business premises and a private home.
8. An opportunity to be heard. The NHVR says you will have a chance to respond before any adverse formal finding or action.
9. Decision. The matter is closed, dealt with by a regulatory response, or referred as a brief of evidence to NHVR Prosecutions, which decides independently whether to prosecute.

For your rights and obligations at each step, including cooperation and privilege, see our guide on what to do if the NHVR contacts you.

How long does it take? The NHVR does not publish a fixed timeframe. Complex matters take longer, while some high-risk matters need a fast outcome.

Your Chain of Responsibility (CoR) Exposure

Under section 26C of the HVNL, each CoR party must ensure the safety of its transport activities, so far as is reasonably practicable. That means eliminating public risks or, if that is not reasonably practicable, minimising them.

The NHVR lists 10 CoR functions: employer, prime contractor, operator, scheduler, consignor, consignee, packer, loading manager, loader and unloader. A driver is not a CoR party unless they are an owner-driver or perform one of those functions.

How a roadside breach widens. A fatigue, mass or dimension breach looks like the driver’s problem at first. Investigators may then ask why it happened. Who set the schedule? Who loaded the vehicle? What systems were in place? In one published NHVR outcome, a dimension breach was dealt with together with a primary duty breach for mass, dimension and loading.

Executive due diligence. Under section 26D, an executive of a CoR business must exercise due diligence to ensure the business complies with its safety duty. Executives include directors and others who take part in management. Due diligence includes taking reasonable steps to:

• acquire, and keep up to date, knowledge about the safe conduct of transport activities
• understand the nature of the business’s transport activities and the hazards and risks involved
• ensure the business has, and uses, appropriate resources to eliminate or minimise those risks
• ensure the business has processes to manage those risks, respond in a timely way to information about hazards and incidents, and comply with its safety duties
• verify that those resources and processes are provided, used and implemented.

Our chain of responsibility explained guide sets out each party’s duties in more detail.

What Are the Maximum Penalties for Primary Duty Offences?

Breaching the primary duty is an offence in one of three categories:

• Category 1: without reasonable excuse, engaging in conduct that exposes a person to a risk of death or serious injury or illness, while being reckless as to that risk.
• Category 2: breaching the duty in a way that exposes a person, or class of persons, to a risk of death or serious injury or illness.
• Category 3: breaching the duty.

An executive who fails to exercise due diligence faces the individual penalty for the relevant category. The NHVR penalty schedule lists no infringement penalty for these offences, so they are dealt with in court. Maximum penalties from 1 August 2026 to 30 June 2027 are:

Potential Outcomes of an NHVR Investigation

The NHVR’s responses do not have to follow a set order, and they can be combined. Possible outcomes include:

• No further action. The matter is closed.
• Education. Information and guidance to encourage voluntary compliance.
• Formal warning. For minor, unintentional offences with no identifiable safety risk.
• Infringement notice. A fine for lower-risk offences with sufficient evidence. You can request an internal review or elect to go to court.
• Improvement notice. Requires the business to fix systemic failures that allowed a breach. Contravening one carries a maximum penalty of $28,230.
• Prohibition notice. Stops an activity posing an immediate or imminent safety risk. Failing to comply carries a maximum penalty of $28,230.
• Action on accreditation or permits. Conditions, suspension or cancellation for systematic or high-risk reoffending.
• Enforceable undertaking. A binding written commitment the NHVR may accept as an alternative to prosecution. It is not available for a Category 1 offence.
• Prosecution. Requires a reasonable prospect of conviction and a public interest in proceeding. Primary duty and executive offences are the top priority. Our guide on what to expect in an HVNL prosecution in NSW explains the court process.
• Court orders. After a conviction, a court can make supervisory intervention orders for systematic or persistent offenders, prohibition orders barring a person from a role in road transport, compensation orders and commercial benefits orders.

The NHVR’s published outcomes include an enforceable undertaking for a breach of the executive duty and a supervisory intervention order for a maintenance primary duty breach.

Related guides: read more about what to do if the NHVR contacts you, how to respond to an NHVR notice, the chain of responsibility explained and what to expect in an HVNL prosecution.

Frequently Asked Questions

Speak With Eric Before You Respond

An NHVR investigation can move from a single roadside breach to questions about your whole business. What you produce, what you say in an interview and how you use your chance to respond can all affect where the matter ends up.

Eric Navea is a former Senior Prosecutor at the NHVR. He has seen how investigations are triaged, how briefs of evidence are built and how prosecution decisions are made. He has also worked as a Solicitor at the NSW Office of the Director of Public Prosecutions and as a lawyer at SafeWork NSW.

As an experienced NHVR investigation lawyer, Eric acts for transport businesses, directors, operators and drivers across NSW, from the first contact with investigators through to any court proceedings.

Contacted by NHVR investigators or received a statutory notice? Speak with Eric before you respond.

Speak With Eric Before You Respond