39 CFR § 966.2 - Scope of rules.
(a) The rules in this part apply to any petition filed by a former postal employee:
(1) To challenge the Postal Service's determination that he or she is liable to the Postal Service for a debt incurred in connection with his or her Postal Service employment, that the Postal Service intends to collect by administrative offset pursuant to the authority of 31 U.S.C. 3716 and in accordance with the regulations contained in the Employee and Labor Relations Manual, sections 470 and 480; and/or
(b) The regulations in this part are consistent with the provisions of the Federal Claims Collection Standards pertaining to administrative offset.