2815

Analysis

Heading 2815 of the Harmonized Tariff Schedule covers sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium. It divides into 4 six-digit subheadings and 4 eight-digit tariff lines, with 5 ten-digit statistical suffixes below them.

3 of its 4 lines with a percentage rate are duty-free at the general rate (75%) and 1 are dutiable, from duty-free up to 3.7%. The median line pays duty-free.

Its median rate of duty-free sits at the 15th percentile of the headings in chapter 28.

The largest subheadings are 2815.11 (unnamed, 1 line), 2815.12 (unnamed, 1 line), 2815.20 (unnamed, 1 line) and 2815.30 (unnamed, 1 line).

By Census's concordance, most of its statistical lines are made by Other Basic Inorganic Chemical Manufacturing (325180). 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.