Code of Federal Regulations Title 41. Public Contracts and Property Management § 41.102–118.450 Can a TSP file a transportation claim against my agency?

(a) Amounts owed but not included in the original billing;

(b) Amounts deducted or set off by an agency that are disputed by the TSP;

(c) Requests by a TSP for amounts previously refunded in error by that TSP;  and/or

(d) Unpaid original bills requiring direct settlement by GSA, including those subject to doubt about the suitability of payment (mainly bankruptcy or fraud).