Ammonia, anhydrous or in aqueous solution
2 declarable lines
Heading 2814 covers ammonia, whether anhydrous or dissolved in water. It has two declarable lines: 2814.10.00.00 for anhydrous ammonia and 2814.20.00.00 for ammonia in aqueous solution. Both lines carry a general (MFN) duty rate of Free.
Products in this heading
- Anhydrous ammonia for refrigeration
- Anhydrous ammonia fertilizer grade
- Ammonia water (aqueous ammonia solution)
- Ammonia solution for laboratory use
- Ammonia water for textile processing
- Ammonia solution for pH control
- Ammonia water for cleaning
How to choose the right subheading
- Check whether water is present: no water points to anhydrous ammonia.
- Check whether the product is ammonia itself or an ammonium salt; salts go to other headings.
- Use 2814.10.00.00 for anhydrous ammonia.
- Use 2814.20.00.00 for ammonia in aqueous solution.
Often confused with
- Heading 2827Ammonium chloride
It is a chloride salt, not ammonia or ammonia solution.
- Heading 2833Ammonium sulfate
It is a sulfate salt used as fertilizer, not ammonia.
- Heading 2834Ammonium nitrate
It is a nitrate salt, not ammonia.
- Heading 2815Sodium hydroxide (caustic soda)
It is a different alkali and is not ammonia.
Frequently asked questions
What is the HTS code for anhydrous ammonia?
Anhydrous ammonia is classified under 2814.10.00.00. The general (MFN) duty rate for that line is Free.
What is the duty on ammonia in aqueous solution?
Ammonia in aqueous solution is classified under 2814.20.00.00. Its general (MFN) duty rate is Free.
How do I classify ammonia solution?
Use 2814.20.00.00 for ammonia dissolved in water, with a general (MFN) rate of Free. Use 2814.10.00.00 only for anhydrous ammonia, also Free.
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.