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Water rating

Water Efficiency Labelling and Standards (WELS) scheme

A joint government and industry program


WELS certification

WaterMark certification

Details on WaterMark accreditation bodies can be found on the JAS-ANZ website

WELS product testing

Testing of WELS products must be undertaken by a laboratory accredited by National Association of Testing Authorities (NATA) or an affiliated international body.

Note not all National Association of Testing Authorities (NATA) laboratories can do all WELS testing Laboratories listed on this page are currently able to test for WELS Standards. For a full list and details of each laboratory's capabilities visit the NATA website

Standards Australia

The Department of Agriculture and Water Resources has sponsored the free download of the WELS standard AS/NZS 6400:2016. Order the WELS Standard through SAI Global‚Äč or contact: SAI Global Tel 02 8206 6405.

For WELS registration support or further information

WELS applicants can download instructions for registering products online from the WELS database. For more information email or call 1800 218 478 (toll free within Australia) or +61 2 6272 5232 (international calls).