EPA will license accredited product certifying bodies to certify that products conform to applicable specifications and to authorize the use of the WaterSense label in conjunction with the certified product.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- ws-certification-product-system-v2.1 (PDF)(27 pp, 543 K)
- ws-certification-system-track-changes-v2.1 (PDF)(29 pp, 575 K)
- ws-certification-system-summary-revised-v2.1 (PDF)(9 pp, 227 K)
- ws-certification-program-labeling-system (PDF)(16 pp, 407 K)
- ws-certification-program-labeling-system-comment-response (PDF)(12 pp, 307 K)
- ws-certification-pco-application-approval (PDF)(4 pp, 498 K)
- ws-certification-program-application (PDF)(3 pp, 422 K)
- ws-certification-pco-labeling-system-revised-spec (PDF)(46 pp, 650 K)
- ws-certification-pco-public-comments (PDF)(16 pp, 864 K)
- ws-certification-program-public-meeting-summary (PDF)(5 pp, 161 K)
- ws-certification-program-public-presentation (PDF)(46 pp, 1 MB)
- ws-certification-program-noi (PDF)(8 pp, 94 K)
- ws-certification-program-noi-presentation (PDF)(37 pp, 1 MB)