If you drive or manage heavy vehicles in Australia, displaying a “Do Not Overtake Turning Vehicle” sign is a legal requirement. However, each state and territory has unique rules about size, text height, and reflectivity. For that reason, at National Traffic Signs, we stock a full range of compliant signs to keep you safely on the road — shipped fast Australia-wide.
NSW requires the left-hand marker text to be at least 50mm high, so signs must be the larger 400mm x 400mm format. Additionally, only Class 1 (Class 400) reflective signs are permitted. See our NSW Do Not Overtake Turning Vehicle signs.
Queensland operators can use narrow reflective strips or metal plate signs provided they are also Class 400 reflective. Browse our compliant signs and strips.
Victorian rules allow both adhesive reflective strips and metal signs. As a result, many operators prefer the 2460mm wide strip (supplied in halves for easy installation). Explore our range.
South Australia (SA) SA follows the national standards, accepting Class 1 reflective in both plate markers and long reflective strips. View compliant products.
WA road authorities require Class 400 reflective finishes for compliance. Shop our heavy vehicle signs.
Tasmania (TAS), ACT & Northern Territory (NT) These state and territories align closely with Australian national rules, with flexibility for strips or plates as long as they are Class 1 reflective. Check our compliant solutions.
Why Choose National Traffic Signs to meet all your rear marker plate needs?
- Compliant nationwide – every Australian State and Territory is covered
- Durable Class 400 reflective signs
- Fast Australia-wide delivery
- Trusted by transport operators, councils, and contractors
Stay safe, stay legal. Order your nationally compliant signs today at NationalTrafficSigns.com.au.