§ 5731 Expenses limited to lowest first-class rate

5 U.S.C. 5731(a)(a) The allowance for actual expenses for transportation may not exceed the lowest first-class rate by the transportation facility used unless it is certified, in accordance with regulations prescribed under section 5738 of this title, that—

5 U.S.C. 5731(a)(1)(1) lowest first-class accommodations are not available; or

5 U.S.C. 5731(a)(2)(2) use of a compartment or other accommodation authorized or approved by the head of the agency concerned or his designee is required for security purposes.

5 U.S.C. 5731(b)(b) Instead of the maximum fixed by subsection (a) of this section, the allowance to an employee of the Government for actual expenses for transportation on an inter-island steamship in Hawaii may not exceed the rate for accommodations on the steamship that is equivalent as nearly as possible to the rate for the lowest first-class accommodations on trans-pacific steamships.