Which Way To Go

Transport law, news & explainers

Independent Australian transport journalism and plain-English reference guides built from primary sources.

WWTG section

Law & Duties

  • What does the NHVR do?

    The National Heavy Vehicle Regulator administers and enforces the HVNL in participating states and territories and provides national access, accreditation, compliance and safety services.

  • What does the NTC do?

    The National Transport Commission is Australia’s transport-reform adviser, developing and maintaining model national land-transport laws and policy reforms for governments to consider and implement.

  • What are HVNL codes of practice?

    An HVNL code of practice is guidance issued by the NHVR that a court may use as evidence of what was known about a hazard, risk, assessment method or control at the…

  • What is the Executive Due Diligence Duty?

    An executive of a legal entity with a heavy-vehicle safety duty must exercise due diligence to ensure the entity complies with that duty.

  • What is the Primary Duty under the HVNL?

    Primary duty requires each party in the Chain of Responsibility to ensure, so far as is reasonably practicable, the safety of its transport activities and to avoid causing or encouraging another person…

  • What is the Heavy Vehicle Industry Master Code?

    The 2026 Master Code is a registered industry code providing authoritative guidance on heavy-vehicle hazards, risks, risk assessment and risk controls.

  • What is Chain of Responsibility?

    Chain of Responsibility extends heavy-vehicle safety responsibility beyond the driver to businesses and people whose transport activities can influence safety.

  • What does reasonably practicable mean?

    Reasonably practicable is the test used to determine what a Chain of Responsibility party can reasonably be expected to do to eliminate or minimise safety risks.

  • What is the Heavy Vehicle National Law?

    The Heavy Vehicle National Law is the national regulatory framework for most heavy vehicles over 4.5 tonnes GVM operating in participating Australian jurisdictions.