IAPMO USHGC, USPSHTC Code Change Monographs Now Available

Ontario, California — IAPMO^® has made the 2026 Uniform Solar, Hydronics and Geothermal Code (USHGC^®) and Uniform Swimming Pool, Spa and Hot Tub Code (USPSHTC^®) Technical Committee Meeting Monographs available for download. 
 
All individuals anticipating an active role in the ANSI-accredited consensus development of the Uniform Codes at the technical committee meetings, May 11-12, (via teleconference and at IAPMO World Headquarters in Ontario, Calif.) will want to download these documents in Adobe PDF format from the following URLs: 
 
USHGC: https://codes.iapmo.org/docs/2027/USHGC/2026_USHGC_TC_Meeting_Monograph.pdf

USPSHTC: https://codes.iapmo.org/docs/2027/USPSHTC/2026_USPSHTC_TC_Meeting_Monograph.pdf

 Hardcopy versions will not be available at the meetings.
 
NOTE: The USPSHTC meeting will be virtual; attendees are required to register in order to participate. Please contact codes-dept@iapmo.org to obtain virtual meeting registration information. 

Topic areas for proposed changes to the USHGC include: heat transfer fluids, including chemical compatibility and detoxified ethylene glycol; freeze protection for solar thermal and hydronic systems; auxiliary heating for solar thermal systems; cooling appliances and equipment for hydronic systems; disinfection of potable water circuits in solar thermal systems; potable water protection and backflow prevention; dual purpose, dedicated, and tankless water heaters, including sizing and temperature limitations; indirect-fired domestic hot water storage tanks; identification of potable and nonpotable water piping systems; piping systems and materials, including joints and connections, transition fittings between dissimilar materials, dielectric fittings, corrosion protection, and material standards; automatic makeup fluid systems; horizontal and vertical ground heat exchanger installation; site surveys, subsurface investigations, and test wells for ground source heat pump (GSHP) systems; commissioning, labeling, and documentation for GSHP systems; and designer and installer qualifications.

Topic areas for proposed changes to the USPSHTC include: oxidation reduction potential (ORP); swimouts; construction site fencing and barriers; abandoned facilities; wading pools; finishes and surfaces of swimming pools; decorative bridges and walkways; deck drainage; turnover time; surf pools; wave pools; artificial white water courses; artificial lagoons; water chemistry parameters; deck covers and lids; swimming pool finishes and surfaces; ozone systems; aquatic play features and venues; open water venues; dedicated swim areas; float tanks; gas chlorinators; and other aquatic venues.

IAPMO urges its members and other interested parties to get involved in the code development process to ensure effectiveness in preserving the public’s health, safety, and welfare through fair and balanced development of the Uniform Codes. Installers, plumbing officials, the construction industry, engineers, and manufacturers all benefit from a cooperative effort in developing codes.

For specific information about the USHGC technical committee, please contact Taylor Duran at (909) 218-8126 or e-mail your question to taylor.duran@iapmo.org. For specific information about the USPSHTC technical committee, please contact Enrique Gonzalez at (909) 230-5535 or e-mail your question to enrique.gonzalez@iapmo.org.