Section 228.03 - Identification of the authorized principal geographic procurement codes(a) USAID has established principal geographic codes which are used by USAID in implementing instruments. This regulation establishes a presumptive authorized principal geographic code, Code 937, for procurement of commodities and services unless otherwise specified in the implementing instrument. Code 937 is defined as the United States, the cooperating/recipient country, and developing countries other than advanced developing countries, and excluding prohibited sources. USAID maintains a list of developing countries, advanced developing countries, and prohibited sources, which will be available in USAID's Automated Directives System, ADS 310.(b) For purposes of procurements under the authority of the Development Fund for Africa, 22 U.S.C. 2293 et seq.; for any waivers authorized under Subpart D of this regulation; and if otherwise designated in an implementing instrument, the authorized principal geographic code shall be Code 935, any area or country but excluding prohibited sources.(c) For purposes of procurements under the Support for Economic and Democratic Development of the Independent States of the Former Soviet Union, 22 U.S.C. 2295b , the authorized principal geographic codes are Code 937 and Code 110 (New Independent States).(d) Additional principal geographic codes may be added to this section if authorized by Congress.