39 C.F.R. § 601.102 Revocation of prior purchasing regulations.
Title 39 - Postal Service
All previous Postal Service purchasing regulations, including the Postal Contracting Manual, Procurement Manual, the Purchasing Manual (Issues 1, 2 and 3), and procurement handbooks, circulars, and instructions, are revoked and are superseded by the regulations contained in this part, except as provided in §601.103.
Title 39: Postal Service
PART 601—PURCHASING OF PROPERTY AND SERVICES
§ 601.102 Revocation of prior purchasing regulations.