Tas Heavy Vehicle Test key terms

A motor vehicle with a gross vehicle mass above the light vehicle limit, or a combination, that is licensed and driven under heavy vehicle rules rather than standard car rules.

The maximum loaded mass a vehicle is designed and rated to carry, including its own weight, as specified by the manufacturer and recorded on the registration.

The maximum total loaded mass permitted for a towing vehicle plus all trailers attached to it, measured as one unit on a weighbridge.

The portion of a vehicle's total weight carried by a single axle or axle group, which must stay within the limits set for that axle configuration.

The weight of a vehicle when it is empty of cargo and passengers but carries fuel, coolant and standard tools as normally supplied.

The difference between a vehicle's gross vehicle mass and its tare mass, representing the maximum weight of goods, passengers and accessories it may legally carry.

The system of straps, chains, curtains or containers that stops a load moving or falling from a vehicle during normal driving, braking and cornering.

The national performance standard setting out how loads must be secured, including minimum tie-down ratings and requirements for covering loose material.

The nationally applied legislation governing heavy vehicle registration, driver fatigue, mass and dimension limits, and accreditation across participating states and territories.

The single national body that administers heavy vehicle regulation, including permits, accreditation and enforcement, on behalf of participating jurisdictions.

The process of recording a heavy vehicle on the official register and paying the required charges so it may legally be used on public roads.

An official document showing the registered operator, vehicle identification details, registration number and expiry date for a heavy vehicle.

The person or business named on the registration as responsible for the heavy vehicle, including its condition, use and compliance with notices.

The periodic process of paying fees and confirming vehicle details to extend a heavy vehicle's registration before it expires and the vehicle becomes unregistered.

A vehicle whose registration has lapsed or was never issued, meaning it cannot lawfully be driven on public roads except under a limited permit.

A short-term permit allowing an unregistered vehicle to travel on public roads for a specific purpose, route and period, such as moving it for repair.

Insurance required as part of registration that covers injury to other people caused by the vehicle, but not damage to property.

An authorisation issued for a vehicle or combination that exceeds standard mass or dimension limits, or needs access to a restricted road, specifying conditions of travel.

A vehicle or load that exceeds standard width, height or length limits and therefore requires a permit or pilot escort before it may travel.

A vehicle or combination carrying more weight than the general mass limits allow, requiring a permit that sets approved routes and axle loadings.

A clearly marked escort vehicle that travels ahead of or behind an oversize load to warn other road users and manage traffic at hazards.

A documented arrangement of signs, barriers, speed limits and traffic controllers used to guide road users safely past a work site or incident.

Construction, maintenance or repair activity on or beside a road, often marked by reduced speed limits, lane closures and warning signs.

A temporary reduced speed limit posted at a work site that applies until the sign indicating its end, even if no workers are visible.

A device fitted to a heavy vehicle that prevents it from being driven faster than a set maximum speed, commonly 100 km/h for heavy trucks.

The rules and practices controlling how long a heavy vehicle driver may work and drive, including required rest breaks and record keeping.

A record in which a heavy vehicle driver notes work, driving and rest times so that fatigue obligations can be checked by an authorised officer.

A state of physical or mental tiredness that slows reaction time and judgement, making a driver unsafe to continue operating a heavy vehicle.

Substances or articles that pose a risk to people, property or the environment during transport and must be carried under specific packaging, placarding and documentation rules.

A warning sign displayed on a vehicle or container that identifies the class of dangerous goods being carried so emergency services can respond appropriately.

The principle that parties such as consignors, packers, loaders and schedulers share legal responsibility for heavy vehicle compliance, not just the driver.

A scheme allowing operators with verified weighing and record systems to access higher mass limits in exchange for demonstrated compliance.

The construction, equipment and maintenance requirements a heavy vehicle must meet, covering brakes, lights, tyres, mirrors and emissions.

A formal check of a heavy vehicle's safety systems and condition, performed to confirm it meets standards before registration or after a defect.

A written notice issued when a vehicle fails to meet standards, requiring the defect to be repaired and the vehicle inspected before it may be used again.

The maximum weight, width, height and length a vehicle or combination may have on a road without a permit, set by national rules.

The gap a heavy vehicle driver keeps behind the vehicle ahead, increased with speed and load because stopping distances are much longer than for cars.

An area around a heavy vehicle that the driver cannot see in mirrors, where other road users may be hidden and at risk during turns or lane changes.

The charge paid to register a heavy vehicle, calculated from factors such as vehicle type, mass and the period of registration requested.

The prescribed document a person lodges with the authority to request registration, a permit, a transfer or another licensing action, with supporting evidence.