(c) The statute does not permit escalation of acquisition-related dollar thresholds established by:

(1) 40 U.S.C. chapter 31, subchapter IV, Wage Rate Requirements (Construction);

(2) 41 U.S.C. chapter 67, Service Contract Labor Standards; or

(3) The United States Trade Representative pursuant to the authority of the Trade Agreements Act of 1979 (19 U.S.C. 2511 et seq.).