5 CFR § 178.104 - Statutory limitations on claims.
(a) Statutory limitations relating to claims generally. Except as provided in paragraphs (b) and (c) of this section or as otherwise provided by law, all claims against the United States Government are subject to the 6-year statute of limitations contained in 31 U.S.C. 3702(b). To satisfy the statutory limitation, a claim must be received by the Office of Personnel Management, or by the department or agency out of whose activities the claim arose, within 6 years from the date the claim accrued. The claimant is responsible for proving that the claim was filed within the applicable statute of limitations.
(b) Claims under the Fair Labor Standards Act. Claims arising under the FLSA, 29 U.S.C. 207, et seq., must be received by the Office of Personnel Management, or by the department or agency out of whose activity the claim arose, within the time limitations specified in the FLSA.
(c) Other statutory limitations. Statutes of limitation other than that identified in paragraph (a) of this section may apply to certain claims. Claimants are responsible for informing themselves regarding other possible statutory limitations.