USMCA.COM
Chapter 38 HTS Revision 18 (2026)

Tariff Schedule

Chapter 38: Miscellaneous chemical products

138 provisions in this chapter where a USMCA claim changes the duty. 11 are also subject to Section 338 duties on Canadian goods, which a USMCA claim does not remove.

HTSDescription GeneralUSMCASection 338
3801.10.10.00 Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes… 3.7% Free
3801.30.00.00 Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes… 4.9% Free
3801.90.00 Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes… 4.9% Free
3802.10.00 Activated carbon; activated natural mineral products; animal black, including spent animal black: Activated carbon 4.8% Free
3802.90.10.00 Activated carbon; activated natural mineral products; animal black, including spent animal black: Bone black 5.8% Free
3802.90.20.00 Activated carbon; activated natural mineral products; animal black, including spent animal black: Activated clays and activated… 2.5% Free
3802.90.50.00 Activated carbon; activated natural mineral products; animal black, including spent animal black: Other 4.8% Free
3804.00.50.00 Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin… 3.7% Free
3805.10.00.00 Gum, wood or sulfate turpentine and other terpenic oils produced by the distillation or other treatment of coniferous woods… 5% Free
3805.90.50.00 Gum, wood or sulfate turpentine and other terpenic oils produced by the distillation or other treatment of coniferous woods… 3.7% Free
3806.10.00 Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums: Rosin and resin acids 5% Free
3806.20.00.00 Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums: Salts of rosin, of resin acids or of… 3.7% Free
3806.30.00.00 Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums: Ester gums 6.5% Free
3806.90.00.00 Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums: Other 4.2% Free
3807.00.00.00 Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin… 0.1% Free
3808.52.00.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.59.10.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.59.40.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.59.50.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.61.10.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.61.50.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.62.10.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.62.50.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.69.10.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.69.50.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.91.10.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 2.8% Free
3808.91.25.01 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.91.30.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.91.50.01 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.92.15.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.92.28.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 3.7% Free
3808.92.30.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.92.50 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.93.15.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.93.20.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.93.50 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.94.10.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.94.50 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.99.08.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 6.5% Free
3808.99.70.00 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3808.99.95.01 Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and… 5% Free
3809.10.00.00 Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example… 2.2¢/kg + 3% Free
3809.91.00.00 Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example… 6% Free
3809.92.10.00 Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example… 6.5% Free
3809.92.50.00 Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example… 6% Free
3809.93.10.00 Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example… 6.5% Free
3809.93.50.00 Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example… 6% Free
3810.10.00.00 Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering… 5% Free
3810.90.10.00 Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering… 6.5% Free
3810.90.50.00 Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering… 5% Free
3811.19.00.00 Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other… 6.5% Free
3811.21.00.00 Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other… 6.5% Free Motor Vehicles
3811.29.00.00 Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other… 6.5% Free
3811.90.00.00 Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other… 6.5% Free
3812.10.10.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 6.5% Free
3812.10.50.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 5% Free
3812.20.10.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 6.5% Free
3812.20.50.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 5% Free
3812.31.00.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 6.5% Free
3812.39.20.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 6.5% Free
3812.39.60.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 6.5% Free
3812.39.90.00 Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing… 5% Free
3813.00.50.00 Preparations and charges for fire extinguishers; charged fire-extinguishing grenades: Other 3.7% Free
3814.00.10.00 Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers: Containing 5… 6.5% Free
3814.00.20.00 Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers: Containing… 6.5% Free
3814.00.50 Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers: Other 6% Free
3815.90.10.00 Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: Of bismuth, of… 6.5% Free
3815.90.20.00 Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: Of mercury or of… 2.8% Free
3815.90.50.00 Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: Other 5% Free
3816.00.20 Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading… 3% Free
3817.00.10.00 Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902: Mixed linear alkylbenzenes 6.5% Free
3817.00.15.00 Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902: Other 6.5% Free
3817.00.20.00 Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902: Mixed alkylnaphthalenes 6.5% Free
3819.00.00 Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent… 6.5% Free
3820.00.00.00 Antifreezing preparations and prepared deicing fluids 6.5% Free
3821.00.00 Prepared culture media for development or maintenance of micro-organisms (including viruses and the like) or of plant, human or… 5% Free
3823.11.00.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Stearic acid 2.1¢/kg + 3.8% Free Motor Vehicles
3823.12.00.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Oleic acid 2.1¢/kg + 3.2% Free Motor Vehicles
3823.13.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Tall oil fatty acids 3.2% Free Motor Vehicles
3823.19.20.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Derived from coconut, palm-kernel or… 2.3% Free Motor Vehicles
3823.19.40.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Other 3.2% Free Motor Vehicles
3823.70.20.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Oleyl 5.1% Free
3823.70.40.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Other 2% Free Motor Vehicles
3823.70.60.00 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: Other 2.4% Free Motor Vehicles
3824.10.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6% Free
3824.30.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 3.6% Free
3824.40.10.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.40.50.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 5% Free
3824.60.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 4.9% Free Motor Vehicles
3824.81.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 5% Free
3824.82.10.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.82.90.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 3.7% Free
3824.83.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 5% Free
3824.84.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.85.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.86.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.87.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 3.7% Free
3824.88.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.89.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.91.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 5% Free
3824.92.00.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 5% Free
3824.99.19.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.25.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.29.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.31.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.32.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.33.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 4.2% Free
3824.99.34.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 2.8% Free
3824.99.35.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.36.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.41 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 4.6% Free
3824.99.49.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.50.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 6.5% Free
3824.99.55.00 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 3.7% Free Motor Vehicles
3824.99.75 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 3.7% Free
3824.99.93 Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including… 5% Free Motor Vehicles
3826.00.10.00 Biodiesel and mixtures thereof, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained… 4.6% Free
3826.00.30.00 Biodiesel and mixtures thereof, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained… 6.5% Free
3827.11.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 3.7% Free
3827.12.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 3.7% Free
3827.13.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 6.5% Free
3827.14.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 6.5% Free
3827.20.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 3.7% Free
3827.31.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 3.7% Free
3827.32.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other… 3.7% Free
3827.39.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other 3.7% Free
3827.40.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 3.7% Free
3827.51.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing… 3.7% Free
3827.59.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other 3.7% Free
3827.61.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Containing 15… 3.7% Free
3827.62.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other, not… 3.7% Free
3827.63.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other, not… 3.7% Free
3827.64.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other, not… 3.7% Free
3827.65.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other, not… 3.7% Free
3827.68.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other, not… 3.7% Free
3827.69.00.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other 3.7% Free
3827.90.10.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Chlorinated but… 6.5% Free
3827.90.90.00 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: Other 3.7% Free