Chapter 31: Fertilizers
HTS heading 3102: Mineral or chemical fertilizers, nitrogenous
13 numbered lines under heading 3102, including 11 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.
| HTS code | Description | Unit | General | Special | Column 2 |
|---|---|---|---|---|---|
| 3102 | Mineral or chemical fertilizers, nitrogenous: | ||||
| 3102.10.00 | Urea, whether or not in aqueous solution | Free | Free | ||
| 3102.10.00.10 | Solid urea | t | |||
| Other: | |||||
| 3102.10.00.30 | Diesel exhaust fluid (DEF) of a kind meeting ISO 22241 | t | |||
| 3102.10.00.50 | Other | t | |||
| Ammonium sulfate; double salts and mixtures of ammonium sulfate and ammonium nitrate: | |||||
| 3102.21.00.00 | Ammonium sulfate | t | Free | Free | |
| 3102.29.00.00 | Other | t | Free | Free | |
| 3102.30.00.00 | Ammonium nitrate, whether or not in aqueous solution | t | Free | Free | |
| 3102.40.00.00 | Mixtures of ammonium nitrate with calcium carbonate or other inorganic nonfertilizing substances | t | Free | Free | |
| 3102.50.00.00 | Sodium nitrate | t | Free | Free | |
| 3102.60.00.00 | Double salts and mixtures of calcium nitrate and ammonium nitrate | t | Free | Free | |
| 3102.80.00.00 | Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution | t | Free | Free | |
| 3102.90.01.00 | Other, including mixtures not specified in the foregoing subheadings | t | Free | Free |
Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.
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Request a free auditSource: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.