AWWA Comment Period on ANSI/AWWA C503-21 – Wet-Barrel Fire Hydrants September 17, 2021 AWWA solicits public comments on all proposed new AWWA Standards, and on all proposed revisions, reaffirmations, or withdrawals of existing AWWA Standards. The referenced standards project is being considered for approval and the publication of this notice begins the 45-day public comment period for AWWA and ANSI. An electronic public review copy of the proposed standard can be obtained for review during the comment period by emailing ETS Support . Comments must be submitted in writing to the AWWA contact listed below no later than the last day of the comment period specified herein. Such comments shall be specific to the section(s) of the standard under review and include sufficient detail so as to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate. AWWA Comment Period closes on November 1, 2021. Send comments to: Emily Meek 303.347.6192 phone The review copy will be edited for publication and may also be revised as appropriate based on any comments received during the public comment period. Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes. Final publication of the standard may take several months. When it is available, a notice will be published in the official notice section of Journal - American Water Works Association . The standard becomes an effective AWWA standard on the first day of the month following such publication in Journal - American Water Works Association . SCOPE This standard pertains to the various types and classes of wet-barrel fire hydrants for use in fireprotection service in areas where the climate is mild and freezing temperatures do not occur. MAJOR REVISIONS Major changes made to the standard in this edition include the following: 1. Permeation language was expanded to define the piping system and components (Sec. 4.1). 2. Section 4.9 was added on hydrant Accessories. 3. Appendix C was added for Break-check valves.