Number plate warning labels

Find out about the requirements for displaying warning labels on gaseous fuelled vehicles and electric and hydrogen vehicles.

Gaseous fuelled vehicles (LPG, LNG, and CNG)

All vehicles powered by gaseous fuels, such as liquefied petroleum gas (LPG), liquefied natural gas (LNG), or compressed natural gas (CNG), must be fitted with warning labelling on their number plates.

The LPG labels can be purchased from Service SA or online through the Service SA Shop.

Manufacturers and owners of hydrogen and electric-powered vehicles, including hybrids, must also display a number plate warning label.

Electric (EV) and hydrogen (H) fuelled vehicles including hybrids

Owners of hydrogen and electric-powered vehicles, including hybrids, built or modified after 1 January 2019 are legally required to display a number plate warning label.

Owners of electric and hydrogen-fuelled vehicles including hybrids built prior to 1 January 2019 are also encouraged to display number plate warning labels.

The warning label must be placed on the number plate as displayed below.

Help keep our emergency first responders safe by allowing them to quickly and accurately identify a vehicle’s fuel source in the case of an emergency.

South Australian number plates showing the EV and H labels displayed in the middle of the plate eg between SO54 and LIC. Both labels are triangular. The EV label is blue and the H label is yellow.

Label requirements are fully detailed in the Vehicle Standards Fact Sheet (240.0 KB PDF).

Where to buy EV and H labels

The Motor Trade Association (MTA) of South Australia in conjunction with Lane Communications supplies labels for hydrogen vehicles, hybrids, and electric vehicles.

The labels (tags) can be:

  • purchased directly from:

Lane Communications
101 Mooring Ave Camden Park
Telephone: 8179 9907

Related information

Other websites

National Heavy Vehicle Regulator Vehicle Standards Guides

Page last updated 1 June 2022

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