20 C.F.R. § 355.25 Fees.
Title 20 - Employees' Benefits
The party requesting a subpoena shall pay the cost of the fees and mileage of any witness subpoenaed in the amounts that would be payable to a witness in a proceeding in U.S. District Court. A check for witness fees and mileage shall accompany the subpoena when served, except that when a subpoena is issued on behalf of the authority, a check for witness fees and mileage need not accompany the subpoena.
Title 20: Employees' Benefits
PART 355—REGULATIONS UNDER THE PROGRAM FRAUD CIVIL REMEDIES ACT OF 1986
§ 355.25 Fees.