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Title 19 of the Code of Federal Regulations (19 CFR) is the body of rules that governs how goods enter the United States, how CBP classifies and values them, when duty is owed, and what a broker or importer can do after entry if something needs correcting. It is the regulatory floor beneath every CBP Form 7501, every post-summary correction, every FTZ admission, and every drawback claim. Alongside 19 CFR, four live streams matter day-to-day: Federal Register notices (rulemaking, proclamations), CBP CSMS messages (operational guidance from Cargo Systems Messaging Service), USTR notices (Section 301 lists, exclusions), and, for EU trade, the EU Official Journal (OJEU). LandedFees rolls these into one feed, indexes by source, and links every notice back to its primary URL so you never have to trust a summary. Use the reference list below to jump to the 19 CFR parts importers cite most, or sign in to filter the live regulatory feed by source and HS prefix.
19 CFR Part 141Entry of merchandise (formal and informal)19 CFR Part 142Entry process, including 142.16 deferred summary19 CFR Part 143Special entry procedures19 CFR Part 146Foreign trade zones (FTZ), including 146.41 privileged foreign19 CFR Part 152Classification and appraisement of merchandise19 CFR Part 158Relief from duties on merchandise lost, damaged, abandoned19 CFR Part 159Liquidation of duties19 CFR Part 174Protests (180-day post-liquidation challenge)19 CFR Part 181USMCA rules of origin and post-entry claims (1520d)19 CFR Part 102Rules of origin and 102.21 textile determinations19 CFR Part 191Duty drawback (substitution and unused merchandise)19 CFR Part 24Customs financial and accounting procedure (MPF, HMF, fees)Source: eCFR (electronic Code of Federal Regulations), the official regulatory publication maintained by NARA.
