Chapter 38
HTS Chapter 38
17 headings · 20 tariff lines · 6 duty-free lines · ad valorem rates from 3% to 6.5%
Headings in chapter 38
| Heading | Description | Lines | Free | Rate range |
|---|---|---|---|---|
| 3801 | Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semimanufactures | 2 | 1 | 4.9–4.9% |
| 3802 | Activated carbon; activated natural mineral products; animal black, including spent animal black | 1 | 0 | 4.8–4.8% |
| 3805 | Gum, wood or sulfate turpentine and other terpenic oils produced by the distillation or other treatment of coniferous woods; crude dipentene; sulfite turpentine and other crude para-cymene; pine oil containing alpha-terpineol as the main constituent | 0 | 0 | Free |
| 3806 | Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums | 1 | 0 | 5–5% |
| 3808 | Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and similar products, put up in forms or packings for retail sale or as preparations or articles (for example, sulfur-treated bands, wicks and candles, and flypapers) | 3 | 0 | 5–5% |
| 3809 | Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example, dressings and mordants), of a kind used in the textile, paper, leather or like industries, not elsewhere specified or included | 0 | 0 | Free |
| 3810 | Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods | 0 | 0 | Free |
| 3811 | Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils | 0 | 0 | Free |
| 3812 | Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics | 0 | 0 | Free |
| 3815 | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included | 1 | 1 | Free |
| 3816 | Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801 | 1 | 0 | 3–3% |
| 3817 | Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902 | 0 | 0 | Free |
| 3822 | Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials | 1 | 1 | Free |
| 3823 | Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols | 1 | 0 | 3.2–3.2% |
| 3824 | Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included | 5 | 2 | 3.7–5% |
| 3825 | Residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other wastes specified in note 6 to this chapter | 0 | 0 | Free |
| 3827 | Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included | 0 | 0 | Free |
How to read chapter 38
Chapter 38 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 20 tariff lines below them are where countries diverge: national suffixes, rate levels and quota notes are set locally.
6 of the 20 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.