5 U.S. Code § 5710 - Authority for travel expenses test programs
(1) Notwithstanding any other provision of this subchapter, under a test program which the Administrator of General Services determines to be in the interest of the Government and approves, an agency may pay through the proper disbursing official for a period not to exceed 24 months any necessary travel expenses in lieu of any payment otherwise authorized or required under this subchapter. An agency shall include in any request to the Administrator for approval of such a test program an analysis of the expected costs and benefits and a set of criteria for evaluating the effectiveness of the program.
(2) Any test program conducted under this section shall be designed to enhance cost savings or other efficiencies that accrue to the Government.
(b) The Administrator shall transmit a copy of any test program approved by the Administrator under this section to the appropriate committees of the Congress at least 30 days before the effective date of the program.
(c) An agency authorized to conduct a test program under subsection (a) shall provide to the Administrator and the appropriate committees of the Congress a report on the results of the program no later than 3 months after completion of the program.