The below updates to AS/NZS 3500 were published on Thursday 17 April 2025:

AS/NZS 3500.1: 2025, Plumbing and drainage, Part 1: Water Services

AS/NZS 3500.2: 2025, Plumbing and drainage, Part 2: Sanitary Plumbing and Drainage

AS/NZS 3500.3: 2025, Plumbing and drainage, Part 3: Stormwater drainage

AS/NZS 3500.4: 2025, Plumbing and drainage, Part 4: Heated water services

Please note: In Victoria, these standards were immediately called up into legislation.

For all other states and territories, they should be called up in the next version of the National Construction Code (NCC). At this stage the next version has not been announced, we will let you know when we find out more.

You can find out more detailed information on the updates via Standards Australia.