All PHTA standards undergo regular review and are revised as appropriate to ensure they are up-to-date and relevant. Any individual may submit a request to change any PHTA standard at any time. The request for change will be considered during the next revision cycle. PHTA generally updates each standard at least every four years.
PHTA is compiling change requests for all other pool and spa industry codes, such as the International Swimming Pool and Spa Code (ISPSC). PHTA will assist with development of the change request, provide technical and expert support, and submit a change request as appropriate to the issuing body following their procedures and deadlines.