8405

Analysis

Heading 8405 of the Harmonized Tariff Schedule covers producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof. It divides into 2 six-digit subheadings and 2 eight-digit tariff lines, with 2 ten-digit statistical suffixes below them.

Every one of its 2 tariff lines is duty-free at the general rate, so classification within the heading affects statistics and Chapter 99 measures rather than the base duty.

The largest subheadings are 8405.10 (unnamed, 1 line) and 8405.90 (unnamed, 1 line).

Its median rate of duty-free sits at the 30th percentile of the headings in chapter 84.

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.