3825.10.01

Analysis

HTS 3825.10.01 covers residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other wastes specified in note 6… under heading 3825 (residual products of the chemical or allied industries, not elsewhere specified or…).

Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 25% of the 179 tariff lines in chapter 38. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.

Census statistics map these goods to NAICS 325199 (All Other Basic Organic Chemical Manufacturing), an industry of 894 US establishments employing 77,304 people. That is the industry code a US manufacturer of the same product would normally use.

All 8 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.

Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.