ANSI/PHTA Standards

Since 1983, PHTA has been accredited by The American National Standards Institute (ANSI) as the Standards Development Organization for the nation's pool and spa standards and now counts 16 American National Standards under its purview. These national consensus standards establish voluntary minimum guidelines that, when adopted by governments and agencies, have the force of law.

The American National Standards Institute (ANSI) is a non-profit, privately funded membership organization that coordinates the development of U.S. voluntary national standards and is the U.S. member body to the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) via the United States National Committee (USNC).

The Institute was founded in 1918, prompted by the need for an "umbrella" organization to coordinate the activities of the U.S. voluntary standards system and eliminate conflict and duplication in the development process. For over eighty years, this system has been successfully administered by the private sector, via ANSI, with the cooperation of federal, state and local governments. The Institute serves a diverse membership of over 1400 companies, 250 professional, technical, trade, labor, and consumer organizations and some 30 government agencies. Standards exist in all industries, including safety and health, telecommunications, information processing, petroleum, medical devices, etc.

ANSI does not itself develop American National Standards; rather it facilitates development by providing the structure within which standards can be developed and consensus can be achieved. ANSI approval of these standards is intended to verify that the principles of openness and due process have been followed in the approval procedure and that a consensus of those directly and materially affected by the standards has been achieved.

The voluntary standards system in the United States consists of a large number of standards developers that write and maintain one or more national standards. The Institute ensures that its guiding principles-consensus, due process, and openness-are followed by these standards developers through the process of accreditation.

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The Association of Pool & Spas Professionals (APSP) follows the established Standards Development Policies and Procedures when developing standards as American National Standards (ANS). These requirements are defined in the American National Standards Institute (ANSI) Essential Requirements: Due Process Requirements for American National Standards. The APSP ANSI Accredited Procedures for Development of American National Standards was approved by ANSI on November 23, 2015. These revised procedures replace the previous published procedures approved on May 21, 2010. 

Additional Information on ANSI:


The PHTA standards programs consists of the PHTA, serving as the Secretariat, the PHTA Standards Writing Committees (SWCs), the Technical Committee of the PHTA Board of Directors (TC) and the PHTA Standards Consensus Committee (SCC) serving as the consensus body. The SCC shall be sufficiently diverse to ensure reasonable balance without dominance by one particular interest category or corporation in accordance with the ANSI Essential Requirements. The PHTA will strive for balance of all interested and affected parties giving them an opportunity to participate in the development of ANSI approved PHTA standards. By adhering to ANSI's due process of openness, balance and consensus, PHTA standards will serve and protect the public.

Steps to approve:

  1. The PHTA Standards Writing Committee (SWC) drafts the content of a proposed American National Standard.
  2. The PHTA Technical Committee (TC) reviews the draft for technical accuracy.
  3. The draft then enters the ANSI balloting process for a vote of the PHTA Standards Consensus Committee (SCC) and public review. The SCC is responsible for changing and approving the technical content of the standard.
  4. The standard is submitted to ANSI for approval as an American National Standard.