Last Update: 8 December 2025
A gas compliance certificate is an official document issued by a licensed gas fitter to confirm that any gas installation or modification meets required safety standards and regulations. It can be provided electronically or on paper, and the gas fitter must keep a copy for several years.
You’ll need a gas compliance certificate when gas is first connected to a property, when new gas piping or appliances are installed, or when existing gas appliances are repaired or replaced. If the work does not meet safety requirements, the gas fitter will issue a defect notice instead, and the system must not be used until it is fixed.
A gas compliance certificate is a certificate completed by a licensed gas fitter after they have installed all, or part, of your installation. This ensures that the equipment is safely in compliance with legal standards and regulations for natural gas and LPG.
The gas fitter will:
- Give you the original copy of the gas system inspection certificate or email you an electronic copy
- Attach an identifying label for the gas fuel system and keep an e-certificate in their records for at least 3 years
The certificate can be issued electronically, via a paperless e-certificate or by a carbon copy certificate book and will be issued within 30 days displaying compliance.
When do you need a gas compliance certificate?
- When gas is initially connected to your building
- A new gas pipe is installed
- Installing a new gas appliance such as: heaters, hot water systems, oven or BBQ
- A gas appliance is repaired or replaced
What is the difference between a gas certificate and a gas plate?
A gas plate is similar to the gas compliance certificate but it's a physical metal that will need to be attached to the gas installation, if you have one linked to the gas network. Your gas fitter will attach one on the inside door of the electrical meter box.
The gas plate will be engraved by a mechanical stamp with the following details:
- The licence number of the gas fitter
- Date of installation
- Reference number of your gas compliance certificate
- The reference number associated with each gas device connected
This means, if you are using natural gas or LPG, you must have a gas plate as well as a compliance certificate. However, if you use gas bottles only, you do not require a gas compliance certificate, but only a certificate of inspection instead.
What if you fail the gas certificate assessment?
If the gas fitter has safety concerns about your gas system, you will be given a defect notice. This notice means that there is imminent risk of harm to persons or property. Appropriate actions must be taken to diminish the risk and it must be reported immediately to the gas network.
If the risk is rectified immediately and the safety concern is abated, you will not be given a defect notice.
Purity Plumbing licensed gas fitter
For the best, fully qualified and experienced gas fitters for your gas compliance needs in your home or business, contact Purity Plumbing now on 0488 856 891 or complete our enquiry form .