Road widener: Registration, uses and equipment

Find out about conditional registration, acceptable uses and equipment requirements for road wideners.

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Conditional registration for road wideners

Road widener

Road wideners need to be conditionally registered to be used on public roads and road-related areas.

Conditional registration gives you limited road access to perform specific functions.

You cannot get conditional registration if a vehicle that complies with the construction and equipment requirements of the Australian Design Rules can be used to perform the same function.

See information about vehicle standards to see what standards apply.

You need a Car (Class C) licence to drive a road widener.

Find out how to apply for conditional registration for a road widener.

Oversize vehicle operators

Vehicles that go beyond the dimension and weight limits must comply with the conditions of the relevant access notice or permit. To find out the conditions for:

  • NSW permits – contact Special Permits Unit on 1300 656 371
  • interstate permits – contact National Heavy Vehicle Regulator on 1300 696 487.

Conditions of use

The following minimum conditions apply to conditional registration.

Condition Code
Daylight / floodlit worksite use only TD1
Flashing amber beacon required and used when vehicle moving. Must be displayed at the rear of the vehicle. SL1
Vehicle to be floated from site to site (except that it can operate in areas designated in LO5) LO99
Use only within a defined construction zone where a traffic control plan applies LO5
Audible warning device must sound at all times when vehicle is moving Free text
Overmass – route specific, if applicable OM3
Oversize – general, if applicable OS1
Oversize – route specific, if applicable OS2
Steering failure warning device / sign required
Note: Only applies to vehicles with hydraulic steering. The maximum speed 45 km/h advisory sign is required where practicable.
Dual control vehicle sign required
Note: Only applies to vehicles with dual controls fitted.

Equipment requirements

To receive conditional registration you must ensure that the following equipment requirements are met.

Equipment Daylight/floodlit use
Amber rotating beacon Yes
Brake and turn lights Yes
Headlights, tail, number plate and clearance lights No
Rear reflectors or reflective tape Yes
Side reflective tape Yes
Rear vision mirror(s) Yes
Horn Yes


All lighting must be fitted as near as possible to the position specified in Schedule 2 of:

Transport for NSW office use

Code Type Code
Vehicle shape RWP
Compulsory Third Party insurance class

Conditional registration - PLNT

Unregistered Vehicle Permit - UPLN

Registration usage RDWK / RDWN if NRTC vehicle over 4.5 tonnes
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