Committee F13 meets twice a year, usually in January and June, with about 50 members attending two days of technical meetings. The Committee, with a membership of 430, currently has jurisdiction of over 16 standards, published in the Annual Book of ASTM Standards, Volume 15.07. F13 has 5 technical subcommittees that maintain jurisdiction over these standards. Information on this subcommittee structure and F13'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 footwear industry. A primary focus of the Committee is the measurement of slip resistance.