{"data":{"id":"us/39-cfr-3040.210","jurisdiction":"us","citation":"39 CFR 3040.210","heading":"General.","body":"Applicable size and weight limitations for mail matter shall appear in the Mail Classification Schedule as part of the description of each product.","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 F—Size and Weight Limitations for Mail Matter"],"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":"07beea4886e32839ad0dafcb5df2a3b507d60b2bb447763e948b6c95922cb03d","source_id":"us-cfr","stale":true,"prev":"us/39-cfr-3040.192","next":"us/39-cfr-3040.211"},"notice":"GroundRules: Original legal text. Not legal advice."}