HVNL 2026 Explained: What Heavy Vehicle Operators Need to Know

Updated 5 November 2026: rewritten for the amended HVNL, which commenced on 1 August 2026.

The amended Heavy Vehicle National Law (HVNL) started on 1 August 2026. It replaced NHVAS with the Heavy Vehicle Accreditation (HVA) scheme, closed BFM and AFM to new applicants, raised General Mass Limits to the former CML weights and added an Unfit to Drive duty for heavy vehicle drivers.

The 2026 HVNL reforms introduced a more structured approach to demonstrating transport safety, with a greater emphasis on effective safety management systems and evidence of how safety risks are managed in practice.

Since the 2018 Chain of Responsibility (CoR) reforms, the transport industry has operated under a particular compliance framework. The 2026 reforms introduced several major changes that further reshaped operator responsibilities and compliance expectations.

This post explains the five key changes operators need to understand and the practical steps businesses can take to manage their obligations under the amended HVNL.

• The HVNL covers every heavy vehicle over 4.5 tonnes GVM operating in ACT, NSW, QLD, SA, TAS or VIC. WA and NT operate under their own heavy vehicle laws, but vehicles from those jurisdictions must comply with the HVNL once they enter a participating state.
• The current HVNL has been in force since 10 February 2014, while the Primary Duty under section 26C has applied since 1 October 2018.
• Queensland Parliament passed the Heavy Vehicle National Law Amendment Bill 2025 on 18 November 2025. The amended Heavy Vehicle National Law (HVNL) took effect on 1 August 2026, replacing earlier expectations of a 1 July start date.
• Operators seeking accreditation under the Heavy Vehicle Accreditation (HVA) scheme must have an effective Safety Management System (SMS) that complies with the Safety Management System Standard 2026. The standard covers five areas: Leadership and Commitment, Risk Management, People, Assurance, Monitoring and Improvement and Safety Systems.
• The Heavy Vehicle Accreditation (HVA) scheme commenced on 1 August 2026. From this date, the NHVR can no longer grant new accreditation under the National Heavy Vehicle Accreditation Scheme (NHVAS). Existing NHVAS operators can transition under the arrangements set out by the NHVR.
• Alternative Compliance Hours (ACH) is the new fatigue hours framework under the HVA scheme. Operators currently using Basic Fatigue Management (BFM) or Advanced Fatigue Management (AFM) can continue under their existing accreditation until it expires. After expiry, drivers return to Standard Hours unless the operator has approval for Alternative Compliance Accreditation (ACA-Fatigue).
• General Mass Limits (GML) increased to align with the former Concessional Mass Limits (CML) weights and CML was discontinued. Accreditation is no longer required to access those former CML weights. Alternative Compliance Accreditation - Mass remains necessary for certain arrangements, including Higher Mass Limits (HML) and Performance Based Standards (PBS). The reforms also introduced changes to general access length limits, Euro VI mass concessions and the Unfit to Drive duty.
• Software alone will not make a fleet compliant, but it can help operators keep the records and evidence needed to show they are meeting their obligations.

Five HVNL Changes Introduced in 2026

Five major changes commenced on 1 August 2026. The reforms introduced a more structured approach to how fleets demonstrate that they are managing transport safety risks and meeting their obligations under the HVNL.

The Heavy Vehicle National Law, administered by the NHVR, applies to every heavy vehicle over 4.5 tonnes gross vehicle mass operating in ACT, NSW, Queensland, South Australia, Tasmania and Victoria.

The HVNL came into effect on 10th February 2014. Western Australia and the Northern Territory have not adopted it and are not part of the 2026 changes. However, vehicles from those states must still follow the HVNL as soon as they enter a participating state.

The Heavy Vehicle National Law Amendment Bill 2025 passed Queensland Parliament on 18 November 2025. The amended HVNL commenced on 1 August 2026. The following sections explain the changes now in effect.

Safety Management Systems for Accreditation

Operators seeking accreditation under the Heavy Vehicle Accreditation (HVA) scheme must have an effective Safety Management System (SMS) that complies with the Safety Management System Standard 2026. The standard covers five key areas:

• Leadership and Commitment
• Risk Management
• People
• Assurance, Monitoring and Improvement
• Safety Systems

During an audit, operators will need to prove that what they say in their policies is actually being done in practice. This includes a signed safety policy from the most senior executive, a risk register linked to transport activities and training records matched to roles.

Operators will also need incident investigation records with completed corrective actions, management review minutes showing executive oversight and a clear document control process with version history. A policy without this supporting evidence will not be enough.

Operators should review their existing safety management arrangements against the five required outcomes and address any gaps in their documentation, risk management processes and management oversight. The focus should be on ensuring that the SMS is operating effectively and that supporting evidence is available for audit. A fleet safety management system can help keep that evidence in one place.

New Heavy Vehicle Accreditation Scheme

Under the HVA scheme, operators seeking accreditation must have an effective Safety Management System (SMS). General Safety Accreditation (GSA) is the foundational level of accreditation and requires an audit against the Safety Management System Standard 2026. Operators who do not seek accreditation are not required to obtain GSA.

General Safety Accreditation (GSA) is the entry level accreditation. It requires a third party audit against the SMS Standard. While GSA on its own does not provide regulatory concessions, it is the foundation for higher levels of accreditation and can support tender and prequalification requirements.

Alternative Compliance Accreditation (ACA) builds on GSA and adds requirements for operators seeking alternative compliance arrangements. ACA-Mass and ACA-Fatigue provide access to specific alternative compliance options, while maintenance accreditation is provided through the GSA-MAP (Maintenance Assurance Program).

From 1 August 2026, the NHVR can no longer grant new NHVAS accreditation. Existing NHVAS operators can continue under their current accreditation and transition to the HVA scheme in accordance with the NHVR's transition arrangements.

Operators should review the NHVR's transition guidance to understand how their existing accreditation and renewal arrangements will be affected by the HVA scheme. Transition requirements depend on the type of accreditation held and the applicable arrangements.

Full detail on the transition is on the NHVR HVA Operator FAQs page.

Alternative Compliance Hours

Under the HVA scheme, Alternative Compliance Hours (ACH) provides the framework for alternative fatigue hours arrangements. Existing operators using Basic Fatigue Management (BFM) or Advanced Fatigue Management (AFM) can continue under their current accreditation until it expires. After expiry, drivers return to Standard Hours unless the operator is approved for ACA-Fatigue.

Operators using BFM or AFM should review the NHVR's current transition guidance to understand how their existing fatigue arrangements are affected by the HVA scheme. The applicable arrangements depend on the operator's accreditation and the transition requirements set out by the NHVR.

The National Driver Work Diary remains a legal way to record work and rest hours under the amended HVNL. Electronic Work Diaries (EWDs) provide a digital alternative for recording work and rest hours, but only EWDs that have been approved by the NHVR can be used as compliant electronic work diaries. The NHVR's updated work diary requirements commenced on 1 August 2026.

Platforms supporting Electronic Work Diary (EWD) workflows are designed to work alongside approved EWD devices, not replace them.

Saphyroo supports the broader fatigue management process through operational visibility, fatigue records and compliance evidence management. Our Electronic Work Diary is going through the NHVR approval process.

Mass and Dimension Reform

General Mass Limits (GML) increased to align with the former Concessional Mass Limits (CML) weights on 1 August 2026. CML was discontinued and operators no longer need accreditation to access those former CML weights.

The amended HVNL introduced changes to general access length limits and Euro VI mass concessions. Operators should check the applicable NHVR mass and dimension requirements for their vehicle combinations before making changes to their operations. Our 2026 axle weight chart sets out the current limits.

Operators who previously required accreditation to access CML weights no longer need that accreditation under the amended HVNL. ACA-Mass remains necessary for certain alternative compliance arrangements, including Higher Mass Limits (HML) and Performance Based Standards (PBS). Operators should confirm their applicable mass limits and accreditation requirements with the NHVR before changing their vehicle configurations or operating conditions.

Unfit to Drive Duty

The amended HVNL introduced a new Unfit to Drive duty. Drivers must not drive a heavy vehicle if they are unfit for any reason, including illness, injury, drugs, alcohol or fatigue. The duty applies to anyone driving a heavy vehicle, not only fatigue regulated drivers and allows drivers to stop or refuse to drive when they are not fit to do so.

Operators should establish processes to manage driver fitness for duty and retain relevant safety records. These processes should support drivers in identifying when they are unfit to drive and allow the business to demonstrate how it manages transport safety risks.

Chain of Responsibility in HVNL 2026

The 2026 changes build on a duty framework that has been in place since 2018. The Primary Duty remains the foundation of transport safety obligations, while an effective Safety Management System (SMS) provides the framework for accredited operators to demonstrate how they manage transport safety risks.

Under Section 26C of the HVNL, every party within the Chain of Responsibility has had a legal obligation since 1 October 2018 to ensure the safety of transport activities, so far as is reasonably practicable.

The NHVR refers to this as the "Primary Duty" obligation.

Importantly, this is not something introduced under the 2026 reforms as it has already been part of the HVNL framework for years.

Section 26D adds responsibilities for company executives and directors. It means senior decision makers can be held personally responsible if the business does not properly manage transport safety risks. These obligations cannot simply be handed off to another team or manager.

For example, if a director leaves fatigue management entirely to the operations team and that system later fails, the director may still be personally accountable.

Ten different parties have responsibilities under the Chain of Responsibility laws. These duties extend beyond operators and prime contractors to include schedulers, consignors, packers, loaders and unloaders.

• Employer.
• Prime contractor.
• Operator.
• Scheduler.
• Consignor.
• Consignee.
• Packer.
• Loading manager.
• Loader.
• Unloader.

Drivers also have responsibilities under the HVNL, but they are not considered Chain of Responsibility parties unless they perform one of the listed roles. Owner drivers are different because they operate as both the driver and the operator, meaning they carry responsibilities in both areas.

Schedulers and consignors also carry responsibility under the Chain of Responsibility laws. If delivery timeframes or loading schedules are unrealistic and push drivers to exceed work and rest limits, responsibility does not sit with the driver alone. The party that created or imposed those schedules may also be held accountable.

Under the amended HVNL, safety management records and supporting evidence can help demonstrate how transport safety risks are managed. Operators seeking accreditation must maintain an effective SMS that meets the requirements of the HVA scheme.

The Regulatory Framework Behind the Changes

The HVNL framework is supported by regulations covering fatigue management, mass and dimension, vehicle standards, registration and general operating requirements. The amended HVNL introduced changes to several areas from 1 August 2026.

Fatigue Management National Regulation

This regulation sets the legal work and rest limits for fatigue regulated drivers. The National Driver Work Diary is used to record driver work and rest hours.

Standard Hours remains the default framework, while BFM and AFM remain available only to operators who already hold that accreditation, until it expires.

From 1 August 2026, the HVA scheme introduced Alternative Compliance Hours (ACH). Existing operators using BFM or AFM can continue under their current accreditation until it expires. After expiry, drivers return to Standard Hours unless the operator is approved for ACA-Fatigue.

Keeping fatigue records organised and ready for review remains an important part of managing transport safety obligations. Fatigue management workflows that link driver hours to clear records can help operators demonstrate how they manage fatigue related risks.

Mass, Dimension and Loading National Regulation

This regulation covers axle limits, gross vehicle mass, gross combination mass and how loads must be restrained.

The 1 August changes sit within this framework and include:

• GML aligning with current CML weights
• The retirement of CML
• An increase in general access length for a prime mover and single semi-trailer from 19 metres to 20 metres
• Expanded Euro VI concessions for road trains

If your fleet operates close to the applicable mass limits, check your vehicle combinations against the current GML settings and any relevant access conditions before making changes to your operations.

Vehicle Standards, Registration and General Regulations

These three areas are often treated as background rules, but they directly shape how enforcement happens under the HVNL.

Vehicle Standards cover roadworthiness, defect notices and maintenance requirements. For example, an unresolved minor defect notice can be escalated to a major defect notice or even a prohibition notice, which can take a vehicle off the road until it is repaired and reinspected.

Registration is managed by each state, but it still operates within the national HVNL framework.

The General Regulation sets out how enforcement works in practice, including infringement processes, the powers of authorised officers and the procedures used during roadside inspections and compliance checks.

HVNL Penalties and How Enforcement Works

Under the HVNL, there are two main types of offences: infringeable offences and court imposed offences.

Infringeable offences can be paid or challenged in court. The NHVR states that "the payment level for infringeable offences in the HVNL is 10% of the maximum court imposable penalty."

Penalty amounts change over time. The HVNL includes an indexation mechanism that uses Australian Bureau of Statistics data to update maximum penalties. Indexation occurs on 1 July each year. Operators should check the current NHVR penalties schedule before relying on specific penalty amounts.

Check the current NHVR penalties schedule before using any specific figure in communications.

Executive exposure under section 26D is different. Breaches of the executive due diligence duty are court imposed offences and apply personally to individual executives, not just the business. This means directors and owners can be held personally responsible, regardless of company structure.

Most enforcement action does not start in court. Authorised officers typically issue improvement notices, which give a set time to fix an issue. They may also issue prohibition notices, which stop a vehicle, driver or activity until the problem is fixed, as well as defect notices or formal warnings.

If an improvement notice is not acted on, it can escalate to stronger enforcement action, including prohibition or court proceedings. A prohibition notice issued at the roadside can immediately take a vehicle out of service.

What to Do Now

With the 2026 HVNL changes now in effect, operators should review their current systems, identify compliance gaps and ensure their processes reflect the updated requirements. The following steps can help businesses manage their obligations under the amended HVNL.

1. Operators seeking accreditation should review their current SMS against the five required outcomes: Leadership and Commitment, Risk Management, People, Assurance, Monitoring and Improvement and Safety Systems. Identify any gaps in the system and supporting evidence, then prioritise the actions needed to address them.
2. Review the HVA accreditation options available for your operation. GSA is the foundational accreditation, while ACA provides additional alternative compliance arrangements for eligible operators. Maintenance accreditation is provided through GSA-MAP. Confirm the requirements that apply to your business with the NHVR.
3. If your business operates under BFM or AFM, review the NHVR's transition arrangements for Alternative Compliance Hours. Existing accreditation can continue until it expires. After expiry, drivers return to Standard Hours unless the operator is approved for ACA-Fatigue.
4. Operators should review their vehicle combinations against the updated GML settings. Businesses that previously required accreditation to access CML weights no longer need that accreditation. Operators should also check the applicable mass and dimension requirements for their vehicles, including any relevant Euro VI concessions.
5. Establish processes to manage driver fitness for duty. Drivers must not drive if they are unfit. Operators should ensure that drivers can identify and report when they are not fit to drive. Relevant safety records should be retained to support the business's safety management processes.

Saphyroo helps fleets capture and manage operational records, including work diary records, fatigue checks, defect logs and sign-off trails, to support their compliance and safety management processes.

Operators remain responsible for their Safety Management Systems, accreditation decisions and the policies and processes underpinning their compliance with the HVNL.

If you want to understand how Saphyroo can support your fleet's compliance and safety management processes under the amended HVNL, explore our fleet management solutions.

Frequently Asked Questions

When did the HVNL 2026 changes start?

The amended Heavy Vehicle National Law commenced on 1 August 2026, after Queensland Parliament passed the Heavy Vehicle National Law Amendment Bill 2025 on 18 November 2025. It applies in the ACT, NSW, Queensland, South Australia, Tasmania and Victoria.

Does every operator need a safety management system now?

No. An effective Safety Management System that meets the SMS Standard 2026 is required for operators who want accreditation under the Heavy Vehicle Accreditation scheme. Every party still has the Primary Duty to manage transport safety risks, so far as is reasonably practicable.

What replaced NHVAS?

The Heavy Vehicle Accreditation (HVA) scheme replaced NHVAS on 1 August 2026. General Safety Accreditation (GSA) is the entry level, Alternative Compliance Accreditation (ACA) covers mass and fatigue options and maintenance accreditation is provided through GSA-MAP. Existing NHVAS operators move across under the NHVR's transition arrangements.

What happened to BFM and AFM?

No new BFM or AFM accreditation has been granted since 1 August 2026. Existing BFM and AFM operators can keep their hours until their accreditation expires, is cancelled or they transition and then drivers return to Standard Hours unless the operator is approved for ACA-Fatigue.

Is the paper work diary still legal?

Yes. The written National Driver Work Diary is still a legal way to record work and rest and the NHVR's updated work diary requirements commenced on 1 August 2026. Only electronic work diaries approved by the NHVR can be used in its place.

What is the Unfit to Drive duty?

From 1 August 2026, a driver must not drive a heavy vehicle while unfit for any reason, including illness, injury, drugs, alcohol or fatigue. It applies to anyone driving a heavy vehicle, not only fatigue regulated drivers, even when they are within their permitted hours.

What changed for mass limits?

General Mass Limits rose to the former Concessional Mass Limits (CML) weights and CML ended, so accreditation is no longer needed for those weights. ACA-Mass is still required for Higher Mass Limits and Performance Based Standards and general access length for a prime mover and single semi-trailer went from 19 to 20 metres.

Explore HVNL compliance support with Saphyroo