(a) Travel and related expenses must at a minimum comply with the restrictions set forth in 48 CFR 31.205-46, or 48 CFR (DEAR) 970.3102-05-46, as appropriate, to be reimbursable.

(b) Travel time may be allowed at a full hourly rate for the portion of time during which retained legal counsel performs legal work for which it was retained; any remaining travel time shall be reimbursed at 50 percent of the full hourly rate, except that in no event will travel time spent working for other clients be allowable. Also, for long distance travel that could be completed by various methods of transportation, e.g., car, train, or plane, costs charged by retained legal counsel or any agent of retained legal counsel will be considered reasonable only if the individuals charge no more travel time than it would take to utilize the fastest mode of transportation that is cost-effective. For example, if retained legal counsel travels for 10 hours by train when a cost-effective flight that would take two hours to get to the same destination is available, the attorney may charge a maximum of two hours for the time spent traveling.