Unless otherwise noted, this part applies to all federally assisted procurements using funds authorized by 49 U.S.C. 5323(j); 23 U.S.C. 103(e)(4); and section 14 of the National Capital Transportation Act of 1969, as amended. [56 FR 932, Jan. 9, 1991, as amended at 72 FR 53696, Sept. 20, 2007]