39 C.F.R. § 20.2 Effective date of the International Mail Manual.
Title 39 - Postal Service
The provisions of the International Mail Manual Issue 31, effective May 31, 2005 are applicable with respect to the international mail services of the Postal Service. [70 FR 70964, Nov. 23, 2005]
Title 39: Postal Service
PART 20—INTERNATIONAL POSTAL SERVICE
§ 20.2 Effective date of the International Mail Manual.