What is the typical U.S. duty rate for Chapter 29 imports?

General (Column 1) duty rates for ad-valorem lines range from 1% to 6.5% (median 5.5%); roughly 25% 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 29?

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 29: Organic chemicals

Q: What does HTS Chapter 29 cover?

Chapter 29 of the U.S. Harmonized Tariff Schedule (HTSUS) covers Organic chemicals. It sits within Section VI: Products of the Chemical or Allied Industries. Tandom's catalog lists all 1261 10-digit statistical lines and 36 4-digit headings in this chapter.

Chapter 29 of the U.S. Harmonized Tariff Schedule covers Organic chemicals and sits within Section VI: Products of the Chemical or Allied Industries.

About Chapter 29

Chapter 29 contains 1,261 10-digit statistical lines grouped under 36 4-digit headings. Brokers, importers, and customs counsel use these codes to declare organic chemicals 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 29 range from 1% to 6.5%, with a median of 5.5%. About 25% of the chapter's lines (315 of 1261) 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
2901.10	Saturated:	—	—	—	—
2901.10.10.00	·Ethane and butane	Free	Free	—	kg
2901.10.30.00	·n-Pentane and isopentane	Free	25%	—	kg
2901.10.40.00	··Derived in whole or in part from petroleum, shale oil or natural gas	Free	25%	—	kg
2901.10.50.00	··Other	Free	25%	—	kg
2901.21.00.00	·Ethylene	Free	Free	—	kg
2901.22.00.00	·Propene (Propylene)	Free	Free	—	kg
2901.23.00.00	·Butene (Butylene) and isomers thereof	Free	Free	—	kg
2901.24	·Buta-1,3-diene and isoprene:	—	—	—	—
2901.24.10.00	··Buta-1,3-diene	Free	Free	—	kg
2901.24.20.00	···Having a purity of 95 percent or more by weight	Free	25%	—	kg
2901.24.50.00	···Other	Free	25%	—	kg
2901.29	·Other:	—	—	—	—
2901.29.10	··Derived in whole or in part from petroleum, shale oil or natural gas	Free	25%	—	—
2901.29.10.10	···Linear α-olefins (C6-C30), unmixed	Free	25%	—	kg
2901.29.10.50	···Other	Free	25%	—	kg
2901.29.50.00	··Other	Free	25%	—	kg

Code	Description	General	Column 2	Special	Units
2902.11.00.00	·Cyclohexane	Free	15.4¢/kg + 40%	—	kg
2902.19.00	·Other	Free	25%

Code	Description	General	Column 2	Special	Units
2903.11.00	·Chloromethane (Methyl chloride) and chloroethane (Ethyl chloride)	5.5%	125%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	—
2903.11.00.10	··Chloromethane (Methyl chloride)	5.5%

Code	Description	General	Column 2	Special	Units
2906.11.00.00	·Menthol	2.1%	6.2%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	kg
2906.12.00.00	·Cyclohexanol, methylcyclohexanols and dimethylcyclohexanols	5.5%

Code	Description	General	Column 2	Special	Units
2907.11.00.00	·Phenol (Hydroxybenzene) and its salts	5.5%	15.4¢/kg + 44%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2907.12.00.00	·Cresols and their salts	4.2%

Code	Description	General	Column 2	Special	Units
2904.10	Derivatives containing only sulfo groups, their salts and ethyl esters:	—	—	—	—
2904.10.04.00	·2-Anthracenesulfonic acid	5.5%

Code	Description	General	Column 2	Special	Units
2905.11	·Methanol (Methyl alcohol):	—	—	—	—
2905.11.10.00	··Imported only for use in producing synthetic natural gas (SNG) or for direct use as a fuel

Code	Description	General	Column 2	Special	Units
2908.11.00.00	·Pentachlorophenol (ISO)	5.5%	15.4¢/kg +40%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2908.19	·Other:	—

Code	Description	General	Column 2	Special	Units
2909.11.00.00	·Diethyl ether	1%	4%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2909.19	·Other:

Code	Description	General	Column 2	Special	Units
2910.10.00.00	Oxirane (Ethylene oxide)	5.5%	49%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2910.20.00.00	Methyloxirane (Propylene oxide)	5.5%

Code	Description	General	Column 2	Special	Units
2911.00	Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated or nitrosated derivatives:	—	—	—	—
2911.00.10.00	1,1-Bis(1-methylethoxy)cyclohexane	Free

Code	Description	General	Column 2	Special	Units
2912.11.00.00	·Methanal (Formaldehyde)	2.8%	12.1%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2912.12.00.00	·Ethanal (Acetaldehyde)	5.5%

Code	Description	General	Column 2	Special	Units
2913.00	Halogenated, sulfonated, nitrated or nitrosated derivatives of products of heading 2912:	—	—	—	—
2913.00.20.00	·4-Fluoro-3-phenoxybenzaldehyde	Free

Code	Description	General	Column 2	Special	Units
2914.11	·Acetone:	—	—	—	—
2914.11.10.00	··Derived in whole or in part from cumene	5.5%

Code	Description	General	Column 2	Special	Units
2915.11.00.00	·Formic acid	5.5%	22.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2915.12.00.00	·Salts of formic acid

Code	Description	General	Column 2	Special	Units
2930.10.01.00	2-(N,N-Dimethylamino) ethanethiol	3.7%	25%	Free (A, AU, BH, CL, CO, D, E, IL, JO, K, KR, L, MA, OM, P, PA, PE, S, SG)	kg
2930.20	Thiocarbamates and dithiocarbamates:	—	—

Code	Description	General	Column 2	Special	Units
2934.10	Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure:	—	—	—	—
2934.10.10.00	··Products described in additional U.S. note 3 to section VI

Code	Description	General	Column 2	Special	Units
2935.10.00.00	N-Methyl perfluorooctane sulfonamide	6.5%	15.4¢/kg + 57.5%	Free (A+,AU,BH,CL,CO,D, E,IL, JO, KR,MA,OM,P, PA,PE,S,SG)	kg
2935.20.00.00	N-Ethyl perfluorooctane sulfonamide	6.5%	15.4¢/kg + 57.5%

Code	Description	General	Column 2	Special	Units
2938.10.00.00	Rutoside (Rutin) and its derivatives	1.5%	10%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	kg
2938.90.00.00	Other	3.7%	50%

Code	Description	General	Column 2	Special	Units
2916.11.00.00	·Acrylic acid and its salts	4.2%	25%	Free (A+,AU,BH,CL,CO,D, E,IL, JO, KR,MA,OM,P, PA,PE,S,SG)	kg
2916.12	·Esters of acrylic acid:

Code	Description	General	Column 2	Special	Units
2917.11.00.00	·Oxalic acid, its salts and esters	3.1%	34.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG)	kg
2917.12	·Adipic acid, its salts and esters:

Code	Description	General	Column 2	Special	Units
2918.11	·Lactic acid, its salts and esters:	—	—	—	—
2918.11.10.00	··Lactic acid	5.1%

Code	Description	General	Column 2	Special	Units
2919.10.00.00	Tris(2,3-dibromopropyl phosphate)	3.7%	25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	kg
2919.90	Other:	—	—

Code	Description	General	Column 2	Special	Units
2920.11.00.00	·Parathion (ISO) and parathion-methyl (ISO) (methyl-parathion)	Free	15.4¢/kg + 64.5%	—	kg
2920.19	·Other:

Code	Description	General	Column 2	Special	Units
2921.11.00.00	·Methylamine, di- or trimethylamine and their salts	3.7%	25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2921.12.01.00	·2-(N,N-Dimethylamino)ethyl chloride hydrochloride	Free

Code	Description	General	Column 2	Special	Units
2922.11.00.00	·Monoethanolamine and its salts	6.5%	50.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	kg
2922.12.00.01	·Diethanolamine and its salts	6.5%

Code	Description	General	Column 2	Special	Units
2923.10.00.00	Choline and its salts	3.7%	25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	kg
2923.20	Lecithins and other phosphoaminolipids:	—

Code	Description	General	Column 2	Special	Units
2924.11.00.00	·Meprobamate (INN)	Free	25%	—	kg
2924.12.00.00	·Fluoroacetamide (ISO), monocrotophos (ISO) and phosphamidon (ISO)	3.7%

Code	Description	General	Column 2	Special	Units
2925.11.00.00	·Saccharin and its salts	6.5%	15.4¢/kg + 61%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2925.12.00.00	·Glutethimide (INN)	Free

2901Acyclic hydrocarbons:

2902Cyclic hydrocarbons:

2903Halogenated derivatives of hydrocarbons:

2904Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated:

2905Acyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives:

2906Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives:

2907Phenols; phenol-alcohols:

2908Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols:

2909Ethers, ether-alcohols, ether-phenols, ether-alcohol- phenols, alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulfonated, nitrated or nitrosated derivatives

2910Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives:

2911

2912Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde:

2913

2914Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated, or nitrosated derivatives:

2915Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

2916Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

2917Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

2918Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

2919Phosphoric esters and their salts, including lactophosphates; their halogenated, sulfonated, nitrated or nitrosated derivatives:

2920Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives:

2921Amine-function compounds

2922Oxygen-function amino-compounds:

2923Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined:

2924Carboxyamide-function compounds; amide-function compounds of carbonic acid:

2925Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds:

2926Nitrile-function compounds:

2927

2928

2929Compounds with other nitrogen function:

2930Organo-sulfur compounds:

2931Other organo-inorganic compounds:

2932Heterocyclic compounds with oxygen hetero-atom(s) only:

2933Heterocyclic compounds with nitrogen hetero-atom(s) only:

2934Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds:

2935Sulfonamides:

2936Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent:

2937Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:

2938Glycosides, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives:

2939Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives:

2940

2941Antibiotics:

2942

Frequently asked questions

What does HTS Chapter 29 cover?

What is the typical U.S. duty rate for Chapter 29 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 29?

`2901`Acyclic hydrocarbons:

`2902`Cyclic hydrocarbons:

`2903`Halogenated derivatives of hydrocarbons:

`2904`Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated:

`2905`Acyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2906`Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2907`Phenols; phenol-alcohols:

`2908`Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols:

`2909`Ethers, ether-alcohols, ether-phenols, ether-alcohol- phenols, alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulfonated, nitrated or nitrosated derivatives

`2910`Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2911`

`2912`Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde:

`2913`

`2914`Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated, or nitrosated derivatives:

`2915`Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2916`Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2917`Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2918`Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2919`Phosphoric esters and their salts, including lactophosphates; their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2920`Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives:

`2921`Amine-function compounds

`2922`Oxygen-function amino-compounds:

`2923`Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined:

`2924`Carboxyamide-function compounds; amide-function compounds of carbonic acid:

`2925`Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds:

`2926`Nitrile-function compounds:

`2927`

`2928`

`2929`Compounds with other nitrogen function:

`2930`Organo-sulfur compounds:

`2931`Other organo-inorganic compounds:

`2932`Heterocyclic compounds with oxygen hetero-atom(s) only:

`2933`Heterocyclic compounds with nitrogen hetero-atom(s) only:

`2934`Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds:

`2935`Sulfonamides:

`2936`Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent:

`2937`Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:

`2938`Glycosides, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives:

`2939`Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives:

`2940`

`2941`Antibiotics:

`2942`

Code	Description	General	Column 2	Special	Units
2926.10.00.00	Acrylonitrile	6.5%	56.5%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2926.20.00.00	1-Cyanoguanidine (Dicyandiamide)	Free	25%

Code	Description	General	Column 2	Special	Units
2927.00	Diazo-, azo- or azoxy-compounds:	—	—	—	—
2927.00.03.00	4-Aminoazobenzenedisulfonic acid, monosodium salt	Free	15.4¢/kg + 40.5%

Code	Description	General	Column 2	Special	Units
2928.00	Organic derivatives of hydrazine or of hydroxylamine:	—	—	—	—
2928.00.10.00	Methyl ethyl ketoxime	3.7%	25%

Code	Description	General	Column 2	Special	Units
2929.10	Isocyanates:	—	—	—	—
2929.10.10.00	·Toluenediisocyanates (unmixed)	6.5%	15.4¢/kg + 40%

Code	Description	General	Column 2	Special	Units
2931.10.00.00	Tetramethyl lead and tetraethyl lead	3.7%	25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2931.20.00.00	Tributyltin compounds	3.7%	25%

Code	Description	General	Column 2	Special	Units
2932.11.00.00	·Tetrahydrofuran	3.7%	25%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
2932.12.00.00	·2-Furaldehyde (Furfuraldehyde)	Free

Code	Description	General	Column 2	Special	Units
2933.11.00.00	·Phenazone (Antipyrine) and its derivatives	6.5%	15.4¢/kg + 49.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	kg
2933.19	·Other:	—

Code	Description	General	Column 2	Special	Units
2936.21.00.00	·Vitamins A and their derivatives	Free	25%	—	kg
2936.22.00.00	·Vitamin B1 (Thiamine) and its derivatives

Code	Description	General	Column 2	Special	Units
2937.11.00.00	·Somatotropin, its derivatives and structural analogues	Free	10%	—	g
2937.12.00.00	·Insulin and its salts

Code	Description	General	Column 2	Special	Units
2939.11.00.00	·Concentrates of poppy straw; buprenorphine (INN); codeine, dihydrocodeine (INN), ethylmorphine, etorphine (INN), heroin, hydrocodone (INN), hydromorphone (INN), morphine, nicomorphine (INN), oxycodone (INN), oxymorphone (INN), pholcodine (INN), thebacon (INN) and thebaine; salts thereof	Free	15.4¢/kg + 50%	—	kg
2939.19	Other: