Key facts
- National lines
- 29
- Subheadings
- 24
- Tariff
- United States
- Chapter
- 31: Fertilisers
Summary
The United States tariff has 29 national lines in HS chapter 31 (fertilisers), under 24 subheadings in 5 headings.
Subheadings with United States lines
The United States tariff has 29 national lines in HS chapter 31 (fertilisers), under 24 subheadings in 5 headings.
31.01 Animal or vegetable fertilisers, whether or not mixed together or chemically treated; fertilisers produced by the mixing or chemical treatment of animal or vegetable products
- 3101.00Animal or vegetable fertilisers, whether or not mixed together or chemically treated; fertilisers produced by the mixing or chemical treatment of animal or vegetable products1 line
31.02 Mineral or chemical fertilizers, nitrogenous
- 3102.10Urea, whether or not in aqueous solution3 lines
- 3102.21Ammonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate: Ammonium sulphate1 line
- 3102.29Ammonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate: Other1 line
- 3102.30Ammonium nitrate, whether or not in aqueous solution1 line
- 3102.40Mixtures of ammonium nitrate with calcium carbonate or other inorganic non-fertilising substances1 line
- 3102.50Sodium nitrate1 line
- 3102.60Double salts and mixtures of calcium nitrate and ammonium nitrate1 line
- 3102.80Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution1 line
- 3102.90Other, including mixtures not specified in the foregoing subheadings1 line
31.03 Mineral or chemical fertilizers, phosphatic
31.04 Mineral or chemical fertilizers, potassic
31.05 Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg
- 3105.10Goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg1 line
- 3105.20Mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium1 line
- 3105.30Diammonium hydrogenorthophosphate (diammonium phosphate)1 line
- 3105.40Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)2 lines
- 3105.51Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus: Containing nitrates and phosphates1 line
- 3105.59Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus: Other1 line
- 3105.60Mineral or chemical fertilisers containing the two fertilising elements phosphorus and potassium1 line
- 3105.90Other2 lines
In other countries
No other national tariff on border.bot has live lines under chapter 31 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have in HS chapter 31?
The United States tariff has 29 national lines in HS chapter 31 (fertilisers), under 24 subheadings in 5 headings.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: