Signage requirements

Restricted Access Vehicle (RAV) signage specifications are detailed in the Schedule 2, Division 6 of the Road Traffic (Vehicle) Regulations 2014. An overview of the requirements is outlined below.

Class 1 Oversize

Signage requirements can be found in the Class 1 RAV Oversize Period Permit - Operating Conditions or listed on your Single Trip Permit.

Generally Class 1 Oversize vehicles are required to display signage on:

  • both the front and rear if it exceeds 2.5 metres in width or 25 metres in length; or

  • the rear only if it does not exceed 2.5 metres in width, and is between 22 and 25 metres in length.

Oversize Road Train

An Oversize Road Train exceeding 2.5 metres in width is required to display an Oversize sign on both the front and rear, as well as a Road Train sign on both the front and rear.

Oversize B-double

An Oversize B-double exceeding 2.5 metres in width is required to display an Oversize sign on both the front and rear, as well as a Long Vehicle sign on the rear.

Other Oversize Combinations

Generally, a vehicle combination which exceeds 2.5 metres in width will require an Oversize sign on both the front and rear, in addition to any other warning sign that the vehicle combination would normally b be required to display if operating within the 2.5 metres width limit, ie. a Long Vehicle or Road Train sign.

Road Trains

  • A Road Train over 30 metres in length that has one or more dog trailers must display a Road Train sign on both the front and rear.

  • Any vehicle combination over 36.5 metres in length must display a Road Train sign on both the front and rear.

Long Vehicles

  • A Long Vehicle (or road train) between 22 and 30 metres in length with one or more dog trailers must display either a Long Vehicle sign on the rear, or a Road Train sign on both the front and rear.

  • A Long Vehicle (or a road train) between 22 and 36.5 metres in length that does not have a dog trailer must display either a Long Vehicle sign on the rear, or a Road Train sign on both the front and rear.

  • A Long Vehicle combination between 22 and 36.5 metres in length that is not covered by the above must display a Long Vehicle sign on the rear.

Transport Operators should note: It is acceptable for the border to be split or to continue around the two parts as shown in these examples below:

Long vehicle sign - split 1Long vehicle sign - split 2Long vehicle sign - unsplit

In WA, a Main Roads issued permit or order is required when driving a Restricted Access Vehicle (RAV) on a public road.

Find out more

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Get in touch with the Heavy Vehicles team on 138 486

Acknowledgement of country

The Government of Western Australia acknowledges the traditional custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders both past and present.

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