PRESS RELEASE

    IAPMO R&T Offers Certification to Louisiana’s Revised Solar Water Heating System Requirements

    IAPMO R&T Offers Certification to Louisiana’s Revised Solar Water Heating System Requirements

    Ontario, Calif. — Recent actions taken by Louisiana’s Department of Health and Hospitals distinguish IAPMO R&T as an approved provider of third‐party certification of solar water heaters within the Pelican State.

    A Nov. 3, 2011, letter of intent from Louisiana’s Department of Health and Hospitals specifies that the 2000 edition of the state plumbing code will be revised to add language specific to the design and installation of solar water heating systems, including naming IAPMO R&T as an example of a properly‐accredited listing agency to provide certification to applicable standards. Section “2.1 Certification” of the letter states:

    Solar water heating systems shall be certified to the Solar Rating & Certification Corporation’s (SRCC) OG300 document, 2010 edition (Operating Guidelines and Minimum Standards for Certifying Solar Water Heating Systems) by the SRCC themselves or by listing agencies [such as the International Association of Plumbing and Mechanical Officials (IAPMO)] which are currently accredited as meeting the ISO/IEC Guide 65 by the American National Standards Institute (ANSI) or other IAF MLA signatory accreditation bodies.

    In August, IAPMO R&T was similarly approved by the Arizona Corporation Commission (ACC) to certify solar systems to OG 300 within the state of Arizona. IAPMO R&T also possesses acceptance by the California Public Utility Commission, as well as the city of Los Angeles, for certification within the state and city, respectively.

    IAPMO R&T has been certifying solar thermal products, both collectors and systems, since the technology enjoyed its first heyday in the mid‐1970s and is accredited by both ANSI and the Standards Council of Canada (SCC) to certify these products to the requirements of OG 300 and SRCC Standard 100, and to IAPMO’s own Uniform Solar Energy Code® (USEC), which has been published since 1976 and is adopted by the states of Colorado and Alaska among others.

    “IAPMO R&T’s USEC mark of conformity tells consumers and inspectors alike that the products bearing it meet all minimum standards governing such products’ installation, performance and operation,” said Anish Desai, IAPMO R&T director of Certification. “IAPMO R&T’s addition to the Louisiana State Plumbing Code serves to further our reputation among manufacturers as a most trusted provider of certification services and listings.”

    IAPMO R&T is also recognized by the United States Environmental Protection Agency (U.S. EPA) to provide third-party certification of solar water heaters to the ENERGY STAR® product labeling system.

    For more information on the certification of solar water heaters, direct your Web browser to www.iapmort.org or contact Charles Gross or Brenda Madonna at (909) 472‐4100.


    IAPMO, ASPE, ASSE International, ARCSA International Join Into Renewed MoU Outlining Future Collaboration

    02 September 2025

    IAPMO® and the American Society of Plumbing Engineers (ASPE) have renewed a Memorandum of Understanding (MoU), now incorporating ASSE International and ARCSA International, to jointly advance and promote the mutual interests of education, regulations, design, specifications, installation, and inspection of plumbing systems, as well as training, testing and certifying qualified professionals to perform design work responsive to the need to conserve and protect water supplies, and reduce energy use connected to delivery and use of water.

    Report on Comments Toward Development of 2027 UPC, UMC Now Available for Online Download

    01 August 2025

    IAPMO®, developer of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®), has posted online the 2025 Report on Comments (ROC) for the 2027 editions of these American National Standard-designated model codes. The ROC includes the committee actions as discussed during the May 6-8 technical committee meetings, the electronic ballot results as balloted between May 19-June 16, and the Technical Correlating Committee actions on all comments received for the 2027 editions.

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