What is the typical U.S. duty rate for Chapter 38 imports?

General (Column 1) duty rates for ad-valorem lines range from 0.1% to 6.5% (median 5%); roughly 26% of lines enter duty-free. Use the calculator linked from each code page to build a date- and origin-specific import-duty estimate, including applicable Chapter 99 layers and customs fees. Potential AD/CVD exposure is flagged separately and is not included in the estimate.

How are Section 301 and Section 232 measures represented in the HTSUS?

Section 301 and Section 232 measures are represented by Chapter 99 provisions. A catalog link between a provision and a 10-digit line is a screening flag, not a claim that the measure applies; origin, product and material facts, claims, and entry date control the result.

How do I screen for antidumping or countervailing duty (AD/CVD) when using Chapter 38?

AD/CVD orders are issued at the case level by the Department of Commerce against specific products from specific countries. Use the product's base HTS code to find potentially relevant AD/CVD order flags, then read the written order scope; an HTS match alone does not determine coverage.

Jump to FAQ ↓

Section VI: Products of the Chemical or Allied Industries

Chapter 38: Miscellaneous chemical products

Q: What does HTS Chapter 38 cover?

Chapter 38 of the U.S. Harmonized Tariff Schedule (HTSUS) covers Miscellaneous chemical products. It sits within Section VI: Products of the Chemical or Allied Industries. Tandom's catalog lists all 223 10-digit statistical lines and 17 4-digit headings in this chapter.

Chapter 38 of the U.S. Harmonized Tariff Schedule covers Miscellaneous chemical products and sits within Section VI: Products of the Chemical or Allied Industries.

About Chapter 38

Chapter 38 contains 223 10-digit statistical lines grouped under 17 4-digit headings. Brokers, importers, and customs counsel use these codes to declare miscellaneous chemical products on entry summaries (CBP Form 7501) and to look up the published Column 1, Special, and Column 2 rate notation.

General (Column 1) duty rates for ad-valorem lines in Chapter 38 range from 0.1% to 6.5%, with a median of 5%. About 25% of the chapter's lines (56 of 223) enter duty-free under the general rate. Special-rate notation (including USMCA, KORUS, AGOA, and GSP when authorized) and Chapter 99 measures can modify these base rates for qualifying shipments.

Product-code pages link into the Tandom Tariff Calculator with the base HTS code prefilled. Chapter 99 provision pages instead show mapped base codes and send you to a dated calculator scenario, which determines whether a measure applies from the entry facts. Tandom's data refreshes daily from USITC HTSUS, CBP CSMS, the Federal Register, and the Department of Commerce — the same authoritative sources the trade community files against.

Code	Description	General	Column 2	Special	Units
3801.10	Artificial graphite:	—	—	—	—
3801.10.10.00	·Plates, rods, powder and other forms, wholly or partly manufactured, for manufacturing into brushes for electric generators, motors or other machines or appliances	3.7%	45%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
3801.10.50	·Other	Free	10%	—	—
3801.10.50.00	·Other	Free	10%	—	kg
3801.10.50.10	··Surface-modified spherical graphite	Free	10%	—	kg
3801.10.50.90	··Other	Free	10%	—	kg
3801.20.00.00	Colloidal or semi-colloidal graphite	Free	10%	—	kg
3801.30.00.00	Carbonaceous pastes for electrodes and similar pastes for furnace linings	4.9%	30%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
3801.90.00	Other	4.9%	45%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	—
3801.90.00.00	Other	4.9%	45%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
3801.90.00.10	·Active anode material containing silicon	4.9%	45%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
3801.90.00.50	·Other	4.9%	45%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg

Code	Description	General	Column 2	Special	Units
3802.10.00	Activated carbon	4.8%	45%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	—
3802.10.00.10	·Derived from coal	4.8%

Code	Description	General	Column 2	Special	Units
3804.00	Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulfonates, but excluding tall oil of heading 3803:	—	—	—	—
3804.00.10.00	Lignin sulfonic acid and its salts	Free

Code	Description	General	Column 2	Special	Units
3805.10.00.00	Gum, wood or sulfate turpentine oils	5%	5%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	liters
3805.90	Other:

Code	Description	General	Column 2	Special	Units
3808.52.00.00	·DDT (ISO) (clofenatone (INN)), in packings of a net weight content not exceeding 300 g	6.5%	15.4¢/kg + 31%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
3808.59

Chapter 38: Miscellaneous chemical products

`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:

`3802`Activated carbon; activated natural mineral products; animal black, including spent animal black:

`3803`Tall oil, whether or not refined

`3804`

`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:

`3806`Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums:

`3807`Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids or on vegetable pitch

`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):

`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:

`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:

`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:

`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:

`3813`

`3814`

`3815`Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included:

`3816`Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801:

`3817`Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902:

`3818`

`3819`

`3820`Antifreezing preparations and prepared deicing fluids

`3821`

`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:

`3823`Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols:

`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:

`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:

`3826`

`3827`Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included:

Frequently asked questions

What does HTS Chapter 38 cover?

What is the typical U.S. duty rate for Chapter 38 imports?

How are Section 301 and Section 232 measures represented in the HTSUS?

How do I screen for antidumping or countervailing duty (AD/CVD) when using Chapter 38?

Code	Description	General	Column 2	Special	Units
3806.10.00	Rosin and resin acids	5%	5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	—
3806.10.00.10	·Gum rosin	5%	5%

Code	Description	General	Column 2	Special	Units
3809.10.00.00	With a basis of amylaceous substances	2.2¢/kg + 3%	17.6¢/kg + 25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
3809.91.00.00	Of a kind used in the textile or like industries

Code	Description	General	Column 2	Special	Units
3810.10.00.00	Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials	5%	25%	Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)	kg
3810.90

Code	Description	General	Column 2	Special	Units
3811.11	·Based on lead compounds:	—	—	—	—
3811.11.10.00	··Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl lead

Code	Description	General	Column 2	Special	Units
3812.10	Prepared rubber accelerators:	—	—	—	—
3812.10.10.00	·Containing any aromatic or modified aromatic rubber accelerator

Code	Description	General	Column 2	Special	Units
3813.00	Preparations and charges for fire extinguishers; charged fire-extinguishing grenades:	—	—	—	—
3813.00.10.00	Consisting wholly of inorganic substances	Free	25%

Code	Description	General	Column 2	Special	Units
3814.00	Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers:	—	—	—	—
3814.00.10.00	Containing 5 percent or more but not more than 25 percent by weight of one or more aromatic or modified aromatic substances	6.5%

Code	Description	General	Column 2	Special	Units
3815.11.00.00	·With nickel or nickel compounds as the active substance	Free	25%	—	kg
3815.12.00	·With precious metal or precious metal compounds as the active substance

Code	Description	General	Column 2	Special	Units
3816.00.10.00	Dolomite ramming mix	Free	30%	—	t
3816.00.20	Other	3%	30%

Code	Description	General	Column 2	Special	Units
3817.00.10.00	·Mixed linear alkylbenzenes	6.5%	15.4¢/kg + 55%	Free (A+,AU,BH,CL,CO,D,E, IL,JO, KR,MA,OM,P, PA,PE,S,SG)	kg
3817.00.15.00	·Other	6.5%

Code	Description	General	Column 2	Special	Units
3827.11.00.00	·Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs)	3.7%	25%	Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM,P, PA, PE, S, SG)	kg
3827.12.00.00	Containing hydrobromofluorocarbons (HBFCs)

Code	Description	General	Column 2	Special	Units
3818.00.00	Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics	Free	25%	—	—
3818.00.00.10	Gallium arsenide wafers, doped	—

Code	Description	General	Column 2	Special	Units
3819.00.00	Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous minerals	6.5%	3.7¢/kg + 60%	Free (A+,AU,BH,CL,CO,D,E, IL,JO, KR,MA,OM,P, PA,PE,S,SG)	—
3819.00.00.10	Hydraulic brake fluids

Code	Description	General	Column 2	Special	Units
3821.00.00	Prepared culture media for development or maintenance of micro-organisms (including viruses and the like) or of plant, human or animal cells	5%	25%	Free (A+,AU,BH,CL,CO,D,E, IL, JO,KR,MA,OM,P, PA,PE,S,SG)	—
3821.00.00.10	·Viral transport media	5%

Code	Description	General	Column 2	Special	Units
3822.11.00.00	·For malaria	Free	Free	—	kg
3822.12.00.00	·For Zika and other diseases transmitted by mosquitoes of the genus Aedes

Code	Description	General	Column 2	Special	Units
3823.11.00.00	·Stearic acid	2.1¢/kg + 3.8%	6.6¢/kg + 25%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
3823.12.00.00	·Oleic acid	2.1¢/kg + 3.2%

Code	Description	General	Column 2	Special	Units
3824.10.00.00	Prepared binders for foundry molds or cores	6%	25%	Free (A+,AU,BH,CL,CO,D,E, IL,JO, KR,MA,OM,P, PA,PE,S,SG)	kg
3824.30.00.00	Nonagglomerated metal carbides mixed together or with metallic binders

Code	Description	General	Column 2	Special	Units
3825.10.01.00	Municipal waste	Free	Free	—	kg
3825.20.00.00	Sewage sludge	Free	Free

Code	Description	General	Column 2	Special	Units
3826.00	Biodiesel and mixtures thereof, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous materials:	—	—	—	—
3826.00.10.00	Biodiesel not containing petroleum oils or oils obtained from bituminous materials (B100)	4.6%

3801Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semimanufactures:

3802Activated carbon; activated natural mineral products; animal black, including spent animal black:

3803Tall oil, whether or not refined

3804

3805Gum, 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:

3806Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums:

3807Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids or on vegetable pitch

3808Insecticides, 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):

3809Finishing 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:

3810Pickling 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:

3811Antiknock 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:

3812Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics:

3813

3814

3815Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included:

3816Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801:

3817Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902:

3818

3819

3820Antifreezing preparations and prepared deicing fluids

3821

3822Diagnostic 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:

3823Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols:

3824Prepared 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:

3825Residual 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:

3826

3827Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included:

Frequently asked questions

What does HTS Chapter 38 cover?

What is the typical U.S. duty rate for Chapter 38 imports?

How are Section 301 and Section 232 measures represented in the HTSUS?

How do I screen for antidumping or countervailing duty (AD/CVD) when using Chapter 38?

`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:

`3802`Activated carbon; activated natural mineral products; animal black, including spent animal black:

`3803`Tall oil, whether or not refined

`3804`

`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:

`3806`Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums:

`3807`Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids or on vegetable pitch

`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):

`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:

`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:

`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:

`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:

`3813`

`3814`

`3815`Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included:

`3816`Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801:

`3817`Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902:

`3818`

`3819`

`3820`Antifreezing preparations and prepared deicing fluids

`3821`

`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:

`3823`Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols:

`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:

`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:

`3826`

`3827`Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: