Gas certificates, plates and notices

When carrying out gas work, you'll need to use certain certificates, plates and notices.

The requirements for gas compliance plates changed in July 2025. Most installations no longer require physical plates, with caravans the exception. Read more about changes to gas compliance plate requirements (PDF, 453KB).

Completing installations

When you complete an installation, you must use the RSHQ Portal to issue:

• the owner or operator of the system with an original copy of the gas system compliance certificate
• the operator of the system/network (if the system is supplied with fuel gas by a distribution system or fuel gas network), with the gas system compliance certificate.

Read more about requirements before starting work and information on contact details for operators.

From 3 February 2026, gas system compliance certifications must be issued using the RSHQ Portal. The portal automatically stores a record of the work to your account.

Issue a certificate in the RSHQ Portal

Defect notices

If you have any safety concerns about a gas system you are working on, you must give the owner or operator a defect notice.

If you believe there is an imminent risk of material harm to persons or property, you must also:

• take appropriate measures to avoid, eliminate or minimise the risk
• immediately report the risk and measures taken by phoning
  • the operator of the distribution system or fuel gas network
  • the Petroleum and Gas Inspectorate.

You do not need to give a defect notice if action is taken to immediately remedy the safety concern (e.g. you carry out gas work to immediately remedy the concern).

From 3 February 2026, gas system defect notices must be issued using the RSHQ Portal. The portal automatically stores a record of the work to your account.

Issue a defect notice in the RSHQ Portal

Gas inspection certificates

If you inspect, alter or install any part of a gas fuel system (in a vehicle, vessel or stationary engine), you must issue the owner or operator of the system with an original copy of the gas system inspection certificate.

From 3 February 2026, gas inspection certificates must be issued using the RSHQ Portal. The portal automatically stores a record of the work to your account.

Issue an inspection certificate in the RSHQ Portal

Gas device approval holders only

Issue a gas device approval certificate (GDAC).

Hydrocarbon refrigerant licence holders only

Issue a hydrocarbon refrigerant (HCR) compliance certificate.