All vehicles, including heavy vehicles, using the road must be maintained according to specific laws and standards. They are listed under the legislation and download headings at the bottom of the page.
These laws contain the mandatory requirements for safe design, construction and maintenance of all vehicles, including heavy vehicles.
To ensure the safety of other road users, and to protect the roads, heavy vehicles must be maintained to comply with laws in the Road Traffic Act 1961. Regular inspections ensure that vehicles are well maintained and operating safely.
Vehicle standards bulletin number 6 (VSB6) - Modifications to heavy vehicles
Vehicle standards bulletin number 2 (VSB2) - Maximum road speed limiting for heavy trucks and buses
Australian design rules
National road transport commission roadworthiness guidelines
Road Traffic (Vehicle Standards) Rules 1999
Road Traffic Act and Regulations