39 C.F.R. § 951.4 Authorization of appearance may be required.
Title 39 - Postal Service
The Judicial Officer, the head of any department of the Postal Service or any Administrative Law Judge may require any person to present satisfactory evidence of his authority to represent the person for whom he appears.
Title 39: Postal Service
PART 951—PROCEDURE GOVERNING THE ELIGIBILITY OF PERSONS TO PRACTICE BEFORE THE POSTAL SERVICE
§ 951.4 Authorization of appearance may be required.
