HTSUS, United States

3102.30.00.00

Ammonium nitrate, whether or not in aqueous solution

Classification path

  1. Mineral or chemical fertilizers, nitrogenous
  2. Ammonium nitrate, whether or not in aqueous solution

Rates of duty

General (MFN)
Free
Column 2Cuba, North Korea, Russia, Belarus
Free
Unit of quantity
t

Related lines in heading 3102

About heading 3102

Mineral or chemical fertilizers, nitrogenous

Heading 3102 covers mineral or chemical fertilizers that are nitrogenous, such as urea, ammonium sulfate, ammonium nitrate, and sodium nitrate. The heading splits first by the specific nitrogen compound, then, for urea, by physical form or end use, and the listed lines carry a general (MFN) rate of Free.

Full guide to heading 3102

Products in this heading

  • Solid urea fertilizer
  • Diesel exhaust fluid (DEF) meeting ISO 22241
  • Ammonium sulfate fertilizer
  • Ammonium nitrate fertilizer
  • Sodium nitrate fertilizer
  • Mixtures of urea and ammonium nitrate in solution
  • Calcium nitrate and ammonium nitrate double salts
  • Ammonium nitrate mixed with calcium carbonate

Frequently asked questions

What is the HTS code for solid urea fertilizer?

Solid urea is classified under 3102.10.00.10, and the general (MFN) rate is Free.

What is the duty on diesel exhaust fluid made from urea?

Urea solution meeting ISO 22241 as diesel exhaust fluid falls under 3102.10.00.30, with a general (MFN) rate of Free.

How do I classify sodium nitrate fertilizer?

Sodium nitrate is classified under 3102.50.00.00, and the general (MFN) rate is Free.

Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.

HTS 3102.30.00.00: Ammonium nitrate, whether or not in aqueous solution, Free duty | HTSBase