PART 4 -- VESSELS IN FOREIGN AND DOMESTIC TRADES
PART 7 -- CUSTOMS RELATIONS WITH INSULAR POSSESSIONS AND GUANTANAMO BAY NAVAL STATION
PART 10 -- ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC.
PART 11 -- PACKING AND STAMPING; MARKING
PART 12 -- SPECIAL CLASSES OF MERCHANDISE
PART 18 -- TRANSPORTATION IN BOND AND MERCHANDISE IN TRANSIT
PART 19 -- CUSTOMS WAREHOUSES, CONTAINER STATIONS AND CONTROL OF MERCHANDISE THEREIN
PART 24 -- CUSTOMS FINANCIAL AND ACCOUNTING PROCEDURE
PART 54 -- CERTAIN IMPORTATIONS TEMPORARILY FREE OF DUTY
PART 101 -- GENERAL PROVISIONS
PART 103 -- AVAILABILITY OF INFORMATION
PART 112 -- CARRIERS, CARTMEN, AND LIGHTERMEN
PART 118 -- CENTRALIZED EXAMINATION STATIONS
PART 122 -- AIR COMMERCE REGULATIONS
PART 123 -- CUSTOMS RELATIONS WITH CANADA AND MEXICO
PART 125 -- CARTAGE AND LIGHTERAGE OF MERCHANDISE
PART 127 -- GENERAL ORDER, UNCLAIMED, AND ABANDONED MERCHANDISE
PART 128 -- EXPRESS CONSIGNMENT
PART 133 -- TRADEMARKS, TRADE NAMES, AND COPYRIGHTS
PART 134 -- COUNTRY OF ORIGIN MARKING
PART 141 -- ENTRY OF MERCHANDISE
PART 143 -- SPECIAL ENTRY PROCEDURE
PART 144 -- WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS
PART 146 -- FOREIGN TRADE ZONES
PART 148 -- PERSONAL DECLARATIONS AND EXEMPTIONS
PART 151 -- EXAMINATION, SAMPLING, AND TESTING OF MERCHANDISE
PART 152 -- CLASSIFICATION AND APPRAISEMENT OF MERCHANDISE
PART 158 -- RELIEF FROM DUTIES ON MERCHANDISE LOST, DAMAGED, ABANDONED, OR EXPORTED
PART 159 -- LIQUIDATION OF DUTIES
PART 161 -- GENERAL ENFORCEMENT PROVISIONS
PART 162 -- INSPECTION, SEARCH, AND SEIZURE*
PART 171 -- FINES, PENALTIES, AND FORFEITURES
PART 172 -- LIQUIDATED DAMAGES
PART 173 -- ADMINISTRATIVE REVIEW IN GENERAL
PART 175 -- PETITIONS BY DOMESTIC INTERESTED PARTIES
PART 176 -- PROCEEDINGS IN THE COURT OF INTERNATIONAL TRADE
PART 177 -- ADMINISTRATIVE RULINGS
PART 178 -- APPROVAL OF INFORMATION COLLECTION REQUIREMENT
PART 181 -- NORTH AMERICAN FREE TRADE AGREEMENT