You may use Government aircraft for travel only if you have authorization from an executive agency under the rules specified in this part (except with regard to travel under § 301-70.808 and § 301-70.910 ). Because the taxpayers should pay no more than necessary for your transportation, generally you may travel on Government aircraft only when a Government aircraft is the most cost-effective mode of travel.
Code of Federal Regulations
[FTR Amdt. 2004-02, 69 FR 34304, June 21, 2004]