41 CFR 301-51.103: -51.103 Liability for a lost GTR.

An employee is liable for any Government expenditure that is caused by the employee's negligence in safeguarding the GTR or tickets received in exchange for the GTR. To avoid liability, the employee should immediately report a lost or stolen GTR to their administrative office. If the lost or stolen GTR shows the carrier service desired and point of origin, the employee should promptly notify in writing the named carrier and other local initial carriers. The employee should not use a GTR recovered after having been reported as lost or stolen. Instead, the employee should report the recovered GTR to their administrative office.