39 C.F.R. § 762.15 Postal Service payments not made by disbursement postal money order.
Title 39 - Postal Service
Postal Service payments not made by Disbursement Postal Money Order are made by cash, U.S. Treasury Check, or by regular postal money order, and may be made by electronic funds transfer.
Title 39: Postal Service
PART 762—DISBURSEMENT POSTAL MONEY ORDERS
Subpart A—General, Definitions, Issuance
§ 762.15 Postal Service payments not made by disbursement postal money order.

