The Pool and Hot Tub Alliance (PHTA) has completed its revisions on the NASI/APSP/ICC-11 2019 American National Standard for Water Quality in Public Pools and Spas.

As public review is a fundamental part of the American National Standards Institute (ANSI), says the PHTA, it welcomes public review and comments. 

The PHTA/ICC-11 standard provides recommended minimum guidelines for the specifications for water quality parameters in the public swimming pool and spa industry. 

From chemicals to public health and safety, the standards cover a range of values. The draft version is available here during the 45-day review, as the PHTA invites all pool, spa and hot tub professionals to review the revisions and submit comments for consideration. All public review comments are due by December 8, 2025.