Business Rules and Standards

These two documents outline the requirements for entry to and participation in the NHVAS and provide a framework for NHVAS governance and administration. They set out policies and procedures for interactions between key parties and are used by the NHVR (which administers the NHVAS), as well as any person who offers management, consultant or audit services to operators. See eligibility requirements for more information on how to become accredited under the NHVAS.

COVID-19 Temporary changes to auditing and driver medical requirements

The following arrangements will be in place until 31 December 2021, when we will review if they need to continue:

Heavy vehicle drivers operating under Advanced Fatigue Management (AFM) or Basic Fatigue Management (BFM) accreditations may continue to drive with an expired driver medical, until they can practicably obtain one.

Auditors can undertake all document and records validation and audits remotely, requesting electronic copies be emailed to them, or sent by another suitable method, and can conduct conversations over the phone where applicable.


The NHVR is undertaking consultation on proposed changes to the NHVAS Business Rules and Standards. A draft of the new Business Rules and Standards as well as supporting documents, feedback form and information sessions can be found at

August 2019 changes

After a minor change to the requirements to be accepted as a NHVAS auditor a new version of the NHVAS Business Rules & Standards (Version 2.4) have been released. The change involves the ability for the NHVR to recognise an auditor’s lead auditor qualification that has been issued by a body other than a JAZ-ANZ accredited body.

The criteria now reads if conducting an audit wherein the auditor leads one or more auditors or has in place a formal agreement to second a person with the technical competencies they must also hold a relevant lead auditor qualification accepted by the NHVR or by another person or body authorised for that purpose by the NHVR.

This is the only change from the previous version, the criteria surrounding the Heavy Vehicle Auditing (HVA) qualification remain unchanged. No action is required from NHVAS participants or auditors registered with the NHVR to conduct NHVAS audits.

July 2017 changes

The NHVAS Business Rules & Standards have had some minor amendments effective July 2017.

  • Vehicle inspection requirements were amended to be in line with harmonised operational policy, to show that a vehicle being nominated into the maintenance management module for the first time must have passed a vehicle inspection by a road transport authority or one of their delegates within the last 12 months. Previously the business rules stated 6 months, which did not align with harmonised operational policy for all Heavy Vehicle National Law (HVNL) participating states.
  • Standard 9 and all references to the fuel tax rebate have been removed. Due to a strengthening of NHVAS audit timeframes the commonwealth no longer recognises the NHVAS as a scheme for which fuel tax rebates apply, for vehicles built before 1996.

June 2015 changes

The NHVAS Business Rules and Standards were updated in March 2015 to ensure more effective safety requirements for heavy vehicles, strengthen the quality of audits and enhance the standing of auditors.

Industry feedback indicated that some aspects of the auditor registration criteria may have been impractical and could possibly prevent auditors from applying to be registered with the NHVR.

In June 2015 the following amendments to the NHVAS Business Rules and Standards were made to the criteria that must be met by a person wishing to be registered as an NHVAS Approved Auditor.

  • Lead Auditor Registration requirement - Section 14.1 of the NHVAS Business Rules and Standards set out general criteria to become registered with the NHVR as an NHVAS Approved Auditor. Criterion 14.1(a) required an auditor to have third party certification in heavy vehicle auditing and also as a lead auditor. The amendment returns the general certification level to auditor status and specifies the circumstances in which the Lead Auditor qualification would be required. This maintains the requirement for the lead auditor knowledge base, but not the requirements to maintain certification.
  • Technical Competencies - Section 14.2 of the NHVAS Business Rules and Standards required auditors of Maintenance and Mass Management systems to have sufficient technical knowledge to understand records and to conduct technically competent interviews or have a formal arrangement so they can draw upon another’s technical competencies. This requirement was amended to state that the technical competencies may be acquired either from AQTF courses or from training recognised by the NHVR.

For more information read the NHVAS Auditor Registration Information sheet (PDF, 224KB).