[Code of Federal Regulations] [Title 48, Volume 5] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 48CFR952.208] [Page 387] TITLE 48--FEDERAL ACQUISITION REGULATIONS SYSTEM CHAPTER 9--DEPARTMENT OF ENERGY Sec. 952.208 Clauses related to required sources of supply.