Australian New Zealand Standard AS / NZS 2845.1:2022 Water Supply - Backflow Prevention Devices Materials, Design and Performance - Yarra Valley Water - Victoria


You will need to comply with this standard to manufacture backflow prevention devices.

This standard specifies requirements for the materials, design, performance and testing of mechanical backflow prevention devices that are used for the protection of water supplies, for health and safety and protection of the environment.

It prescribes the requirement that you will need to install a backflow prevention device on your property if your property is assessed as a high or medium hazard risk.

  • High risk sites use or produce products of a toxic or bacterial nature that may cause death if leaked into the main water supply (e.g. chemical plants and hospitals).
  • Medium risk sites can endanger health if backflow occurs (e.g. caravan parks and public swimming pools).
  • Low risk sites could result in a nuisance but not endanger health if contamination occurs (e.g. residential homes).

If your property is assessed as needing a device, you must have it installed by a licensed plumber within three months. Your licensed backflow prevention plumber will also complete a Certificate of Compliance and Backflow Prevention Inspection and Maintenance Report.

Service type

Code of Practice

A code of practice is a set of rules which details how people in a certain industry should behave. A code of practice can be defined as a result of legislation or by industry regulators and bodies.

Act(s) name

Water Act 1989 Victoria

Regulation(s) name

Water (Estimation, Supply and Sewerage) Regulations 2014 Victoria

Administering agency

Yarra Valley Water

Contact details

Contact Email, Phone and Address Details for this service in simple two column table format, header then data.