41 CFR § 301-10.100
What types of common carrier transportation may I be authorized to use?
June 9, 2020
You may be authorized to use airline, train, ship, bus, or other transit system.
[FTR Amdt. 70, 63 FR 15955, Apr. 1, 1998, as amended by FTR Amdt. 2010-02, 75 FR 24435, May 5, 2010]