301-51.101—Which payment methods are considered the equivalent of cash?
Use of one of the following payment methods of this section to procure common carrier transportation is considered the equivalent of cash and you must comply with the rules in 41 CFR 102-118.50 that limit the use of cash for such purposes.
(b)
Cash withdrawals obtained from an ATM using a Government contractor-issued individually billed travel card; and
(c)
Checks, both personal and travelers (including those obtained through a travel payment system services program).