| 8431.41.00 | 20 | Shovel attachments | No. | | | |
| 8431.41.00 | | Of machinery of heading 8426, 8429 or 8430: | | | | |
| 8431.42.00 | 00 | Bulldozer or angledozer blades | No. | Free | | 35% |
| 8431.43 | | Parts for boring or sinking machinery of subheading 8430.41 or 8430.49: | | | | |
| 8431.43.40 | 00 | Of offshore oil and natural gas drilling and productions platforms | X | Free | | 45% |
| 8431.43.80 | | Other | | Free | | 35% |
| 8431.43.80 | 20 | Of oil and gas field machinery: | | | | |
| 8431.43.80 | 20 | Tool joints, whether or not forged | No. | | | |
| 8431.43.80 | 40 | Drill pipe fitted with tool joints | No. | | | |
| 8431.43.80 | 60 | Other | X | | | |
| 8431.43.80 | 90 | Of other boring or sinking machinery | X | | | |
| 8431.49 | | Other: | | | | |
| 8431.49.10 | | Of machinery of heading 8426 | | Free | | 35% |
| 8431.49.10 | 10 | Of machinery of subheadings 8426.11, 8426.19 and 8426.30 | X | | | |
| 8431.49.10 | 60 | Of mobile lifting frames, straddle carriers and works trucks fitted with a crane | X | | | |
| 8431.49.10 | 90 | Other | X | | | |
| 8431.49.90 | | Other | | Free | | 35% |
| 8431.49.90 | 05 | Attachments for mounting on machinery: | | | | |
| 8431.49.90 | 05 | Backhoe attachments | No. | | | |
| 8431.49.90 | 10 | Front-end loader attachments | No. | | | |
| 8431.49.90 | 15 | Rippers and rooters | No. | | | |
| 8431.49.90 | 20 | Other | No. | | | |
| 8431.49.90 | 25 | Other: | | | | |
| 8431.49.90 | 25 | Parts of coal or rock cutters and tunneling machinery: | | | | |
| 8431.49.90 | 25 | Cast axle housings | No. | | | |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
