Section 301-2.5 - What travel arrangements require specific authorization or prior approval?You must have a specific authorization or prior approval for:
(a) Use of other than coach-class service on common carrier transportation;(b) Use of a foreign air carrier or foreign ship;(c) Use of reduced fares for group or charter arrangements;(d) Use of cash to pay for common carrier transportation;(e) Use of extra-fare train service;(h) Use of a Government aircraft;(i) Payment of a reduced per diem rate;(j) Payment of actual expense, unless your agency has issued a blanket actual expense authorization under § 301-70.201;(k) Travel expenses related to emergency travel;(l) Transportation expenses related to threatened law enforcement/investigative employees and members of their families;(m) Travel expenses related to travel to a foreign area;(n) Acceptance of payment from a non-Federal source for travel expenses, see chapter 304 of this subtitle;(o) Travel expenses related to attendance at a conference; and(p) Due to an employee's medical requirements or religious beliefs, payment of the full M&IE allowance even though meals are furnished by the Government either directly or through a registration fee or other payment for a conference or other event, in accordance with § 301-11.18(b).FTR Amdt. 70, 63 FR 15955, Apr. 1, 1998, as amended by FTR Amdt. 2005-03, 70 FR 28459 , May 18, 2005; FTR Amdt. 2009-03, 74 FR 16328 , Apr. 10, 2009; FTR Amdt. 2009-06, 74 FR 55147 , Oct. 27, 2009; FTR Amdt. 2011-03, 76 FR 55274 , Sept. 7, 2011; FTR Case 2020-300-1, 87 FR 55702 , Sept. 12, 2022 Note to § 301-2.5: Paragraphs (c), (i), (n), and (o) of this section require a written or electronic advance authorization.