---
kind: "section"
citation: "41 C.F.R. § 301-2.3"
title: "41"
number: "301-2.3"
heading: "Travel arrangements requiring specific authorization or prior approval."
url: "https://uscodex.org/cfr/41/301-2.3"
---

# §301-2.3. Travel arrangements requiring specific authorization or prior approval.

- (a) **Specific authorization or prior approval is required for—**
  - (1) Use of reduced fares for group or charter arrangements;
  - (2) Use of a foreign air carrier or foreign ship;
  - (3) Payment of a reduced per diem;
  - (4) Use of cash to pay for common carrier transportation;
  - (5) Travel expenses related to emergency travel;
  - (6) Acceptance of payment from a non-Federal source for travel expenses (see chapter 304 of this subtitle);
  - (7) Travel expenses related to conference attendance;
  - (8) Use of a Government aircraft;
  - (9) Use of extra-fare train service;
  - (10) Travel by ship; and
  - (11) **Use of a rental car.**
- (b) Paragraphs [(a)(1)](#a-1), [(3)](#a-3), [(6)](#a-6), and [(7)](#a-7) of this section require a written or electronic advance authorization.

## Notes

### Authority

Authority: 5 U.S.C. 5707; 31 U.S.C. 1353; 49 U.S.C. 40118.

### Source

Source: FTR Case 2025-05, 90 FR 56893, Dec. 8, 2025, unless otherwise noted.