(1)

The WELS standard must set out:

(a) criteria for rating the products in relation to either or both of the following:
(i) water efficiency;
(ii) general performance; and
(b) requirements in relation to communicating such ratings on product labels.

(2)

The WELS standard may require the products to be registered for the purposes of specified supplies of the product.

(3)

If the WELS standard requires the products to be registered, the WELS standard may also require either or both of the following:

(a) that the products comply with specified minimum water efficiency requirements for the purposes of specified supplies of the product;
(b) that the products comply with specified minimum general performance requirements for the purposes of specified supplies of the product.

(4)

The WELS standard may require products that are registered (whether required to be registered or not) to be WELS-labelled for the purposes of specified supplies of the product.