Analysis
Heading 8410 of the Harmonized Tariff Schedule covers hydraulic turbines, water wheels and regulators therefor; parts thereof. It divides into 4 six-digit subheadings and 4 eight-digit tariff lines, with 4 ten-digit statistical suffixes below them.
None of its 4 lines is duty-free at the general rate. Rates run from 3.8% to 3.8% with a median of 3.8%, so the line you choose sets the duty.
Its median rate of 3.8% sits at the 84th percentile of the headings in chapter 84.
The largest subheadings are 8410.11 (unnamed, 1 line), 8410.12 (unnamed, 1 line), 8410.13 (unnamed, 1 line) and 8410.90 (unnamed, 1 line).
By Census's concordance, most of its statistical lines are made by Turbine and Turbine Generator Set Units Manufacturing (333611). Those are the NAICS industries a US producer of these goods would report under.
The heading text decides whether a product belongs here at all (General Rule of Interpretation 1); the subheadings and lines below it only apply once that is settled. Section and chapter notes can override the heading wording, so read them for borderline goods.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 8410.11.00 | Of a power not exceeding 1,000 kW | 3.8% |
| 8410.12.00 | Of a power exceeding 1,000 kW but not exceeding 10,000 kW | 3.8% |
| 8410.13.00 | Of a power exceeding 10,000 kW | 3.8% |
| 8410.90.00 | Parts, including regulators | 3.8% |