Analysis
HTS 8433.53.00 covers root or tuber harvesting machines under heading 8433 (harvesting or threshing machinery, including straw or fodder balers; grass or hay mowers…).
The normal trade relations rate here is zero, shared by about 61% of the 823 tariff lines in chapter 84, a useful check when a neighbouring dutiable line is a candidate. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
Census statistics map these goods to NAICS 333111 (Farm Machinery and Equipment Manufacturing), an industry of 1,120 US establishments employing 69,047 people. That concordance is how imports of this line are compared with US output.
All 11 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 8433.11.00 | Powered, with the cutting device rotating in a horizontal plane | Free |
| 8433.19.00 | Mowers for lawns, parks or sports grounds: other | Free |
| 8433.20.00 | Harvesting or threshing machinery, including straw or fodder balers; grass or hay mowers; machines for cleaning, sorting or grading eggs, fruit or other agricultural produce, other than machinery of heading 8437; parts thereof: other mowers, including cutter bars for tractor mounting | Free |
| 8433.30.00 | Harvesting or threshing machinery, including straw or fodder balers; grass or hay mowers; machines for cleaning, sorting or grading eggs, fruit or other agricultural produce, other than machinery of heading 8437; parts thereof: other haymaking machinery | Free |
| 8433.40.00 | Straw or fodder balers, including pick-up balers | Free |
| 8433.51.00 | Combine harvester-threshers | Free |
| 8433.52.00 | Other harvesting machinery; threshing machinery: other threshing machinery | Free |
| 8433.59.00 | Other harvesting machinery; threshing machinery: other | Free |
| 8433.60.00 | Machines for cleaning, sorting or grading eggs, fruit or other agricultural produce | Free |
| 8433.90.10 | Of mowers for lawns, parks or sports grounds | Free |
| 8433.90.50 | Parts: other | Free |