ASSE International is an ANSI-accredited standards developer and ANAB-accredited product certification body composed of members representing all disciplines of the plumbing and mechanical industries. ASSE’s product performance standards, professional qualifications standards, professional certification, and product certification programs aim to improve the performance and safety of plumbing and mechanical systems.

 Only those products that have been tested by an independent ASSE-listed testing laboratory, have been reviewed by the ASSE International Seal Control Board and have been found to be in compliance with the appropriate product standard can display the ASSE Seal. If your code requires an ASSE listing, be sure that the product displays the ASSE Seal.