Oversize light vehicles
Oversize light oversize vehicles have a unique set of requirements on Victorian roads
What is classed as an oversize light vehicle?
Oversize light vehicles, also known as Class O vehicles, include any car, truck, boat or vehicle combination that exceeds one or more of the below measurements:
- 4.3 metres in height
- 2.5 metres in width
- 12.5 metres in length for a rigid vehicle
- 19.0 metres in length for a combination.
Some of the more common Class O vehicles include:
- boat trailers
- trailers or trucks carrying agricultural implements (like conveyors and augers)
- are towing an oversize trailer.
Oversize light vehicle conditions and requirements
The Road Safety (Vehicles) Regulations 2009 sets out the dimension limits and other requirements for Class 0 vehicles. In particular they may be up to 3.5 metres wide, 4.6 metres high and 25.0 metres long.
Class O vehicles can travel on all roads in Victoria except:
- in the Mountainous Area and the Otway Area (if the vehicle is over 2.5 metres in width and/or 19 metres in length)
- in the Gippsland Ranges Area and Colac–Surf Coast Area (if the vehicle is over 3 metres in width and/or 22 metres in length)
- on Main Roads (if the vehicle is a Class O agricultural vehicle or agricultural combination)
- on restricted routes.
For full details of Class O restrictions, including areas, routes and times, see Schedule 7 of the Road Safety (Vehicles) Regulations 2009 and the Victorian Government’s Class O Specifications.
Class O Over Dimensional permit
If a Class O vehicle exceeds the dimension limits stated in Schedule 7 of the Road Safety (Vehicles) Regulations 2009 or requires an exemption from a condition stated in the regulations then you’ll need a Light Vehicle Over Dimensional Permit. To apply for this permit, download the following form and send it to VicRoads.
Light Vehicle Over Dimensional Permit Application Form [PDF 67 Kb]
Rear overhang limits for trucks and cars
If you’re carrying a load on a truck or a car, there are overhang limits you’ll need to comply with. For overhang limits on common car and truck combinations, see Rear overhang limits for cars and trucks in Victoria [PDF 537 Kb]
If your rear overhang exceeds these limits you’ll need to use a more suitable vehicle for transportation (unless your load is exempt).
Rear overhang exemptions
Trailers transporting gliders and water sport devices are exempt from standard rear overhang limits so long as -
- The mass of the trailer and load does not exceed 4.5 tonnes:
- The length of the laden trailer does not exceed 13.5 metres;
- The rear overhang of the trailer as constructed does not exceed 3.7 metres
- The rear overhang of the load carried on the trailer measured from the centre of the axle or axle group does not exceed 5 metres;
- Any part of the load that exceeds the rear overhang limit of 3.7 metres does not exceed a total width of 2.0 metres;
- The maximum width of a trailer does not exceed 2.5 metres
- The trailer exerts a positive downward force on the towing vehicle’s trailer coupling
- The registered operator of the towing vehicle ensures that the combination can be safely operated on its intended routes.