Analysis
HTS 8430.31.00 covers coal or rock cutters and tunneling machinery: self-propelled under heading 8430 (other moving, grading, leveling, scraping, excavating, tamping, compacting, extracting or…). US Customs collects import statistics for it under 2 ten-digit suffixes, reported in number of items.
For statistics it divides in two: 8430.31.00.40 for rock breaking machines and 8430.31.00.80 for other. Both pay the same duty; the suffix records which kind was imported.
Goods from countries without normal trade relations pay the column 2 rate of 35% instead of nothing, so origin decides between free entry and a 35% duty.
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 333131 (Mining Machinery and Equipment Manufacturing), an industry of 266 US establishments employing 10,391 people. That concordance is how imports of this line are compared with US output.
Statistical suffixes
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 8430.10.00 | Pile-drivers and pile-extractors | Free |
| 8430.20.00 | Snowplows and snowblowers | Free |
| 8430.39.00 | Coal or rock cutters and tunneling machinery: other | Free |
| 8430.41.00 | Other boring or sinking machinery: self-propelled | Free |
| 8430.49.40 | Offshore oil and natural gas drilling and production platforms | Free |
| 8430.49.80 | Other: other | Free |
| 8430.50.10 | Other machinery, self-propelled: peat excavators | Free |
| 8430.50.50 | Other machinery, self-propelled: other | Free |
| 8430.61.00 | Tamping or compacting machinery | Free |
| 8430.69.01 | Other machinery, not self-propelled: other | Free |