8503

Analysis

Heading 8503 of the Harmonized Tariff Schedule covers parts suitable for use solely or principally with the machines of heading 8501 or 8502. It has 7 tariff lines.

The spread of 6.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 6.5%, applies to 8503.00.35 (for motors of under 18.65 W) and 8503.00.75 (for motors of under 18.65 W).

2 of its 7 lines with a percentage rate are duty-free at the general rate (29%) and 5 are dutiable, from duty-free up to 6.5%. The median line pays 3%.

Its median rate of 3% sits at the 78th percentile of the headings in chapter 85.

By Census's concordance, most of its statistical lines are made by Motor and Generator Manufacturing (335312). 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.