41 CFR 301-10.264: -10.264 Reimbursement to the Government for Government aircraft travel.

(a) No reimbursement is required for official travel on a Government aircraft.

(b) For personal travel on Government aircraft, reimbursement depends on specific circumstances:

(1) For required use travel, the employee must reimburse the Government the excess of the full coach fare for all flights taken over the full coach fare for flights that would have been taken without personal activities. For a wholly personal trip, the employee must pay the full coach fare for the entire trip.

(2) For travel authorized under 10 U.S.C. 2648 and in accordance with §§ 301-10.260 through 301-10.264, or for employees or their dependents stationed by the Government in remote locations without access to regularly scheduled commercial airline service, no reimbursement is required.

(c) For political travel on a Government aircraft, the Government must be reimbursed the excess of the full coach fare for all flights taken over the full coach fare for flights that would have been taken without political activities. If other laws or regulations specify a different reimbursement amount, that specified amount applies.

(d) Except for required use travel, any use of Government aircraft for personal or political activities must not increase the actual operating costs to the Government.