41 C.F.R. § 301-51.203 What must I do about my advance if my trip is canceled or postponed indefinitely?
Title 41 - Public Contracts and Property Management
Promptly notify the appropriate agency officials and refund any monies advanced in connection with the authorized travel.
Title 41: Public Contracts and Property Management
PART 301–51—PAYING TRAVEL EXPENSES
Subpart C—Receiving Travel Advances
§ 301-51.203 What must I do about my advance if my trip is canceled or postponed indefinitely?