{"data":{"id":"us/39-cfr-3040.105","jurisdiction":"us","citation":"39 CFR 3040.105","heading":"Modifications to the Mail Classification Schedule.","body":"(a) Whenever the Postal Regulatory Commission issues a final order that modifies the Mail Classification Schedule, it shall update the Mail Classification Schedule appearing on its website at http://www.prc.gov in accordance with paragraph (b) of this section.\n(b) Modifications to the Mail Classification Schedule shall be incorporated within 6 months after the modifications take effect pursuant to the applicable final order that modifies the Mail Classification Schedule.\n(c) Modifications pending incorporation into the Mail Classification Schedule are effective immediately upon written direction from the Postal Regulatory Commission.","path":["Title 39—Postal Service","CHAPTER III—POSTAL REGULATORY COMMISSION","SUBCHAPTER E—REGULATIONS GOVERNING MARKET DOMINANT PRODUCTS, COMPETITIVE PRODUCTS, PRODUCT LISTS, AND MARKET TESTS","PART 3040—PRODUCT LISTS AND THE MAIL CLASSIFICATION SCHEDULE","Subpart A—Product Lists and the Mail Classification Schedule"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-39.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:51Z","sha256":"ab40b47e68239e8b19393d9fbc88e0ef40d2d7652dc24b6b3e39b2801a49bbfa","source_id":"us-cfr","stale":true,"prev":"us/39-cfr-3040.104","next":"us/39-cfr-3040.130"},"notice":"GroundRules: Original legal text. Not legal advice."}