Chapter 18
HTS Chapter 18
2 headings · 8 tariff lines · 2 duty-free lines · ad valorem rates from 4.3% to 6%
Headings in chapter 18
How to read chapter 18
Chapter 18 is part of the international Harmonized System, not a US invention — the chapter and heading boundaries are shared with every country that uses HS 2022. The 8 tariff lines below them are where countries diverge: national suffixes, rate levels and quota notes are set locally.
2 of the 8 lines in this chapter carry a general rate of Free. That is a statement about the general column only — Section 301, AD/CVD and quota measures are applied on top and are not reflected here.