§ 102-118.200 TSP files a claim against an agency.
A claim must be received by the agency where the claim arose within 3 years beginning the day after the latest of the following dates (except in time of war)—
(a) Accrual of the cause of action;
(b) Payment of charges for the transportation involved;
(c) Subsequent refund for overpayment of those charges; or
(d) Deductions made to a TSP claim by the Government under 31 U.S.C. 3726.