Analysis
Heading 9107 of the Harmonized Tariff Schedule covers time switches with clock or watch movement or with synchronous motor. It has 2 tariff lines.
Its lines are 9107.00.40 for valued not over $5 each (15¢ each + 4% + 2.5¢/jewel) and 9107.00.80 for valued over $5 each (45¢ each + 6.4% + 2.5¢/jewel).
2 of the lines carry specific or compound rates (per kilogram, per dozen and so on) rather than a percentage, so their burden depends on the unit value of the goods.
By Census's concordance, most of its statistical lines are made by Switchgear and Switchboard Apparatus Manufacturing (335313) and Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512). 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 |
|---|---|---|
| 9107.00.40 | Valued not over $5 each | 15¢ each + 4% + 2.5¢/jewel |
| 9107.00.80 | Valued over $5 each | 45¢ each + 6.4% + 2.5¢/jewel |