• Level [§ 123 - § 126] - Cuba and Canal Zone

• Level [§ 127 - § 129] - Countervailing and Discriminating Duty

• Level [§ 130 - § 133] - Country of Origin

• Level [§ 134 - § 134] - Medicinal Preparations

• Level [§ 135 - § 143] - Importations Prohibited

• Level [§ 144 - § 147] - Special Provisions for Admission or Withdrawal From Bonded Warehouse Without Payment of Duty

• Level [§ 148 - § 151] - Bonded Warehouses

• Level [§ 152 - § 152b] - Drawbacks

• Level [§ 153 - § 153] - Reimporting Exported Articles

• Level [§ 154 - § 159] - Equalizing Production Costs

• Level [§ 160 - § 171] - Antidumping

• Level [§ 172 - § 172] - Additional Definitions

• Level [§ 173 - § 173] - Rules and Regulations

• Level [§ 174 - § 180] - Unfair Methods of Competition and Importation Unlawful

• Level [§ 181 - § 190] - Imports From Countries Making Discriminations

• Level [§ 191 - § 196a] - Special Provisions

• Level [§ 197 - § 199] - Payment of Duty