ASTM Committee C13 on Concrete Pipe was formed in 1931. C13 meets once a year, usually in September, with approximately 100 members attending over three days of technical meetings. The Committee, with membership of 226, currently has jurisdiction of over 70 standards published in the Annual Book of ASTM Standards, Volume 04.05. C13 has 9 technical subcommittees that maintain jurisdiction over these standards. Information on this subcommittee structure and C13's portfolio of approved standards and Work Items under construction are available from the List of Subcommittees, Standards and Work Items below. These standards have and continue to play a preeminent role in all aspects important to the effective standardization of concrete pipe, including, material specifications, test methods, and installation practices.