| 2709.00.20 | 10 | Condensate derived wholly from natural gas | bbl | | | |
| 2901.21.00 | 00 | Unsaturated: | | | | |
| 2903.21.00 | 00 | Unsaturated chlorinated derivatives of acyclic hydrocarbons: | | | | |
| 2905.22 | | Unsaturated monohydric alcohols: | | | | |
| 2916 | | Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: | | | | |
| 2916.11.00 | 00 | Unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: | | | | |
| 3907.91 | | Unsaturated: | | | | |
| 3920.63 | | Of unsaturated polyesters: | | | | |
| 9021 | | Orthopedic appliances, including crutches, surgical belts and trusses; splints and other fracture appliances; artificial parts of the body; hearing aids and other appliances which are worn or carried, or implanted in the body, to compensate for a defect or disability; parts and accessories thereof: | | | | |
| 9804.00.75 | | Any article imported to replace a like article of comparable value previously exempted from duty under subheading 9804.00.70, if the article previously exempted shall have been exported, under such supervision as the Secretary may prescribe, within 60 days after its importation because it was found by the importer to be unsatisfactory | | Free | | Free |
