41 CFR 301-70.903: -70.903 Responsibilities for ensuring cost-effectiveness of Government aircraft travel.

To ensure Government aircraft are the most cost-effective alternative for travel, the agency's aircraft management office must calculate the cost of a trip on the Government aircraft, whether Federal aircraft Federal or CAS aircraft, and submit that information to the traveler's designated travel-approving official upon request. The designated travel-approving official must use that information to compare the cost of using Government aircraft with the cost of scheduled commercial airline service and the cost of using other available modes of transportation. When the agency operates a Government aircraft to fulfill a non-travel related governmental function or for required use travel, using any space available for passengers on official travel is presumed to result in cost savings.