AS/NZS 5601 amendments
The information below details the amendments to the standards 5601.1 and 5601.2 over time.
AS/NZS 5601.1 2022
A new revision and 6 month transition period
AS/NZS 5601.1 2022 was published on 30 September 2022
There are significant changes in AS/NZS 5601.1 2022 from the previous standard. These changes will affect persons carrying out gasfitting work.
Transition period ends on 30 March 2023
From 30 March 2023, after the 6 month transition period, work will be assessed against the new standard.
Gasfitters are expected to comply in full with the 2022 edition of AS/NZS 5601.1 from this date.
6 month transition
Energy Safe Victoria and the Victorian Building Authority (VBA) provided industry a 6 month transition period for implementation of the standard. Work completed prior to, or during this period, will be assessed against the old standard. However, gasfitters can choose to use the new standard during this period.
Certain projects will also be assessed against the old standard. For example, if work is installed but not completed before the new standard is implemented. If completing the work occurs after the transition period, we will assess that part of the work against the new standard.
Why was there a transition period?
To ensure industry had sufficient time to become familiar with the new requirements in the standard. And taking into consideration this significant change:
Multilayer pipe installed in new buildings and the modification of consumer piping in existing buildings using multilayer pipe will now require automatic isolation in the event of a fire. This is in the form of an automatic shut off valve interlocked to a fire safety system or alternatively for class 1a residential building other devices such as an excess flow device or Under Pressure Shut-off device (UPSO) can be used.
Both Energy Safe and the VBA understand the need to allow time for suppliers to build up stock of the gas components that will be required for installations to meet the new requirement.
AS/NZS 5601.1 2022 - correction amendment
- Clause 5.2.11 (more detail below)
- Clause 6.4
- Clause 6.4.1
- Clause 18.104.22.168 and
- Table 22.214.171.124
All changes are minor in nature and the intent of the clauses remains unchanged.
1. Delete last paragraph and replace with the following:
Alternatively, for a Class 1a building in Australia, or detached or multi-unit dwelling in New Zealand, a system or device that automatically shuts off the gas supply if gas tightness is adversely affected by a fire emergency event shall be provided. The system or device which shuts off the gas supply shall be installed in a readily accessible location as close as practicable to the point of supply and prior to any multi-layer pipe. The device shall be sized and commissioned in accordance with manufacturer’s instructions, to ensure safe and correct operation and avoid nuisance tripping.
2. After Note 3, add the following:
NOTE 4: This clause also applies to the alteration of consumer piping using multilayer pipe in an existing installation but does not apply to the replacement of a gas appliance in an existing installation.
Gasfitters are encouraged to familiarise themselves with the full correction amendment.
- Read the Standards Alert – Publication of AS/NZS 5601.1: 2022:
- Watch our guidance videos below
- Read ESV’s industry guidance on Transitional arrangement for adoption of prescribed AS/NZS 5601.1 standards:
Consult the Standard
Energy Safe and the VBA strongly encourage practitioners to consult the complete standard to ensure they comply with all Means of Conformance requirements.
AS/NZS 5601 guidance videos
New requirements for emergency isolation of multilayer pipe
Energy Safe’s commercial kitchens gas installations video
Updated in October 2022 to cover new requirements under AS/NZS 5601.1 2022.
Energy Safe's AS/NZS 5601.1 Amendments video
For further information on the new standard, watch our video below:
Standards Alert: Publication of AS/NZS 5601.1:2022 Gas installations Part 1: General installations
View as a PDF:
Part 1: General installations
On 30 September 2022, Standards Australia published AS/NZS 5601.1:2022 Gas installations Part 1: General installations.
The requirements of this prescribed standard will apply from 30 March 2023 (six-month transition period from the date of publication).
AS/NZS 5601.1:2022 outlines requirements relating to the design, installation and commissioning of gas installations that are associated with the use or intended use of natural gas, LP gas or biogas. The standard forms part of the Victorian plumbing regulatory regime and applies to gasfitting work carried out in Victoria.
The following sections provide a summary of the key changes to AS/NZS 5601.1:2022. Gasfitters must refer to the whole Standard for full details of the requirements.
1.3 Terms and definitions
Clause 1.3.39 – New definition for a “fire safety system”.
Clause 1.3.65 – New definition for an “ignition source”.
Section 2 Essential safety and performance-based design requirements
Section 2 has been separated into “Essential safety requirements” and “Performance-based design requirements”.
Clauses 4.2 (Table 4.2) and 5.2.12
Brazing prohibited within one metre of a joint with non-metallic components.
Clauses 4.2 (Table 4.2), 5.2.12 & 5.3.16
Prohibition on the installation of multilayer pipe above-ground external to buildings.
New requirement for the isolation of installations in educational institutions
New requirement for the isolation of installations in commercial kitchens.
Provision of fire emergency isolation for multilayer pipe.
New drawings for consumer piping located in cavities (notching and drilling studs).
Clause 6.9.4 & (Figure 6.9.4)
Revised requirements for the location of flue terminals under a covered area, in a recess or on a balcony.
Gas appliance flues can no longer terminate in a roof space in Australia to align with New Zealand.
Increased clearance requirement between domestic cooking appliances and rangehoods to align with IEC 60335-2-31, Household and similar electrical appliances — Safety, Part 2-31: Particular requirements for rangehoods and other cooking fume extractors.
New requirements for freestanding commercial catering equipment with under-equipment connection.
New requirements for the connection of freestanding commercial catering equipment using a hose assembly – high level connection.
Restrictions on the use of semi-rigid connectors in the installation of commercial catering installations.
Appendix C – Thermal protection of combustible materials
New requirements for the protection of combustible surfaces adjacent to commercial catering equipment.
Appendix F – Sizing consumer piping
New pipe sizing graphs and tables, which are less conservative than the 2010 and 2013 editions of AS/NZS 5601.1. In particular, for complex gas installations with larger pipe diameters and longer pipe runs allowing for greater flow capacity for a given pipe size.
Appendix K – Gas in high-rise buildings
Effect of altitude on gas supply pressure for high-rise building installations.
Want to know more?
This Standards Alert provides an overview of changes and updates to AS/NZS 5601.1:2022. It is not intended to be a substitute for the whole standard.
Consult the Standard
Energy Safe and the Victorian Building Authority strongly encourage practitioners to consult the complete standard
to ensure they comply with all Means of Conformance requirements.
If you have questions or require further information regarding the updated AS/NZS 5601.1 standard, please contact:
Date: 06/12/2023 10:25
The currency and accuracy of this document cannot be guaranteed once printed or saved to a storage device. If in doubt, please check the ESV website for the current version.
Reviewed 09 November 2023