CFR›Title 39›Chapter III›Part 3040›Subpart A ContainsSections 3040.101–3040.105CorpusDaily eCFRDisplayed edition2026-05-15Last updated2026-05-15 Subpart A—Product Lists and the Mail Classification Schedule Sections 3040.101 § 3040.101 Applicability. 3040.102 § 3040.102 Product lists. 3040.103 § 3040.103 Notice of product list change. 3040.104 § 3040.104 Mail Classification Schedule. 3040.105 § 3040.105 Modifications to the Mail Classification Schedule. Source81 FR 38954, June 15, 2016, unless otherwise noted. Next B Subpart B—Requests Initiated by the Postal Service To Modify the Product Lists