ASC X9, the Accredited Standards Committee X9, is a nonprofit organization that develops and publishes standards for the financial services industry. Headquartered in Annapolis, United States, ASC X9 standards define the workings of the financial industry in the United States. With approximately 130 member companies, including key industry leaders, and the global financial influence wielded by the United States, ASC X9 standards strongly affect financial systems throughout the world.

ASC X9 also serves as the administrator for the U.S. TAGs (United States Technical Advisory Group) to ISO/TC 68 (International Organization for Standardization/Technical Committee) and to three of its subcommittees.Standards from X9 are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need