Pub. L. 112-74, div. H, tit. V, sec. 512 (as amended)

SEC. 512. None of the funds appropriated or otherwise made available in this Act may be used by an agency of the executive branch to pay for first-class travel by an employee of the agency in contravention of sections 301-10.122 through 301-10.124 of title 41, Code of Federal Regulations.