39 C.F.R. § 965.12 Appeal.
Title 39 - Postal Service
The initial or tentative decision will become final 10 days after its issuance and receipt by the parties unless the Judicial Officer, or by delegation the Associate Judicial Officer, in his sole discretion, grants review upon appeal of either party filed within that period, or on his own motion within that period. If an appeal is denied, the initial or tentative decision becomes the final agency decision on the issuance of such denial. The judicial Officer's decision on appeal is the final agency decision with no further agency review or appeal rights.
Title 39: Postal Service
PART 965—RULES OF PRACTICE IN PROCEEDINGS RELATIVE TO MAIL DISPUTES
§ 965.12 Appeal.