When you grant an exemption from use of the Government contractor-issued travel charge card, you may authorize one or a combination of the following methods of payment:
(a)
Personal funds, including cash or personal charge card;
(c)
Government Transportation Request (GTR).
Code of Federal Regulations
Note to § 301-70.705
:
City pair contractors are not required to accept payment by the methods in paragraph (a) or (b) of this section.