There are two main EDI standards that are currently used in North America and Europe: the ASC X12 group of standards supported by the American National Standards Institute (ANSI) and the EDIFACT standards supported by the United Nations Economic Commission for Europe (UN/ECE). Both standards activities are managed in the US by: Data Interchange Standards Association, Inc., 1800 Diagonal Road, Suite 200 Alexandria, Virginia, 22314-28552 Voice: 703-548-7005 FAX: 703-548-5738