Do Not Overtake

This Heavy Vehicle Signs Category 33 is manufactured using Class 1A Pressure Sensitive Reflective Vinyl.


AS 4001.1 CLASS

33A/B 300Wx300H



Indicate left and right extremities of vehicle. There is only one Category 33 sign but it can be used on the left or right of the rear of the vehicle by orienting it as required.




  • Position pair of Category 33 plates on the rear surface of the vehicle at the same height, symmetrically about the longitudinal centre-line of the vehicle.

  • For applicable vehicles locate a Category 31L or 33L plate on this surface at the left-hand side of the rear of the vehicle above the Category 33 plate OR use a Category 34 plate instead of the left-oriented Category 33 plate.



Class 1 Reflective Films are best suited for high-intensity reflective signage and vehicle application. Class 1 are premium-grade reflective films, and most are approved for vehicle use in Australia. Popular uses for these films include - highway signs, ambulances, and any general signage applications where reflected light from wider angles is required.

Do Not Overtake

SKU: DMI 101-33AB