Analysis
Subheading 9022.29 covers for other uses, within heading 9022. The first six digits are shared by every country that uses the Harmonized System, so this part of the code is the same in the US, UK and EU schedules; the 2 US tariff lines below it are national.
Every one of its 2 tariff lines is duty-free at the general rate, so classification within the subheading affects statistics and Chapter 99 measures rather than the base duty.
The US splits it as follows: 9022.29.40 for smoke detectors, ionization type (duty-free) and 9022.29.80 for for other uses: other (duty-free).
By Census's concordance, most of its statistical lines are made by Other Communications Equipment Manufacturing (334290) and Irradiation Apparatus Manufacturing (334517). Those are the NAICS industries a US producer of these goods would report under.
Goods only reach 9022.29 once they fall within heading 9022 (apparatus based on the use of X-rays or of alpha, beta, gamma or other ionizing…). Under General Rule 6, subheadings are then compared only with others at the same level, so a product is matched against its siblings, not against lines elsewhere in the chapter.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 9022.29.40 | Smoke detectors, ionization type | Free |
| 9022.29.80 | For other uses: other | Free |