Antifreezing preparations and prepared deicing fluids
1 declarable lines
Heading 3820 covers antifreezing preparations, such as engine coolant and radiator antifreeze, and prepared deicing fluids, such as aircraft and runway deicers. The heading is not split by product type: both groups fall under the single declarable line 3820.00.00.00. Products of this heading are mixtures or preparations, not single pure chemicals.
Products in this heading
- Engine coolant concentrate for car radiators
- Ready-mixed antifreeze and coolant
- Antifreeze with corrosion inhibitors for aluminum radiators
- Prepared aircraft deicing fluid
- Runway and road deicing fluid in liquid form
- Windshield deicer fluid
- Concentrated glycol-based antifreeze for HVAC systems
How to choose the right subheading
- Decide whether the product's main use is preventing freezing or removing ice, rather than lubricating, cleaning or transmitting hydraulic power.
- Check whether it is a preparation or mixture, such as glycol plus inhibitors, rather than a single separate chemically defined compound.
- Confirm the product is not a prepared hydraulic fluid for brakes or transmissions, which goes to heading 3819.
- Confirm it is not a prepared additive for mineral oils or fuels, which goes to heading 3811.
- Concentrate and ready-to-use forms both fall under the same line, so dilution does not change the classification.
Often confused with
- Heading 3819Hydraulic brake fluid
Prepared hydraulic transmission liquids are classified in 3819, not as antifreeze.
- Heading 3811Fuel additives and anti-corrosive preparations for mineral oils
Prepared additives for oils or fuels belong to 3811.
- Heading 3814Paint thinner and organic composite solvents
Solvent and thinner preparations are classified in 3814.
- Heading 2501Rock salt for road deicing
Salt is a mineral product of 2501, not a prepared deicing fluid.
- Heading 3808Disinfectant sprays and similar retail preparations
Disinfectants are classified in 3808.
Frequently asked questions
What is the HTS code for engine antifreeze?
Engine antifreeze is classified under 3820.00.00.00, which carries a general (MFN) duty rate of 6.5%.
What is the duty on prepared deicing fluid?
Prepared deicing fluid falls under 3820.00.00.00 and is dutiable at the general (MFN) rate of 6.5%.
How do I classify a glycol coolant mixture?
A glycol-based coolant mixture sold for freeze protection is classified under 3820.00.00.00 at a general (MFN) rate of 6.5%, provided it is a preparation and not a prepared hydraulic fluid of heading 3819.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.