Australian New Zealand Standard AS/NZS 6400:2005 Water Efficient Products - Rating and Labelling - Australian Government


You will be required to comply with this standard if you intend to manufacture or supply a product to which the Water Efficiency Labelling Scheme applies (a WELS product). WELS products include:

  • showers
  • dishwashers
  • clothes washing machines
  • lavatory equipment
  • urinal equipment
  • tap equipment
  • flow controllers.

These products must be registered for supply as a new product. This standard specifies requirements for the rating of products for water efficiency, and includes the associated registration, labelling and, where applicable, minimum performance requirements. It provides the basis for the star ratings and water consumption and flow displayed on the WELS label.

Please consult the Contact Officer for more information and to ascertain the level of compliance that may be required.

Service type

Code of Practice

A code of practice can be either a legal requirement or non-legal requirement. Legal codes of practice are defined as a result of legislation. Non-legal codes of practice are defined by industry regulators and bodies.

Administering agency

Department of the Environment and Energy

Water Efficiency Labelling and Standards Regulator

Contact details

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

WELS Enquiries

Mailing address: GPO BOX 787
Canberra, Australian Capital Territory 2601
Phone: 1800 218 478
Fax: 02 6274 2322