HS Chapter 31: Fertilizers
All 24 six-digit HS codes in this chapter, under 5 headings, with the official descriptions.
| HS code | Official description |
|---|---|
| 31.01 | Animal or vegetable fertilizers, whether or not mixed together or chemically treated; fertilizers produced by the mixing or chemical treatment of animal or vegetable products. |
| 3101.00 | Animal or vegetable fertilizers, whether or not mixed together or chemically treated; fertilizers produced by the mixing or chemical treatment of animal or vegetable products. |
| 31.02 | Mineral or chemical fertilizers, nitrogenous. |
| 3102.10 | Urea, whether or not in aqueous solution |
| 3102.21 | Ammonium sulphateAmmonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate |
| 3102.29 | OtherAmmonium sulphate; double salts and mixtures of ammonium sulphate and ammonium nitrate |
| 3102.30 | Ammonium nitrate, whether or not in aqueous solution |
| 3102.40 | Mixtures of ammonium nitrate with calcium carbonate or other inorganic non-fertilizing substances |
| 3102.50 | Sodium nitrate |
| 3102.60 | Double salts and mixtures of calcium nitrate and ammonium nitrate |
| 3102.80 | Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution |
| 3102.90 | Other, including mixtures not specified in the foregoing subheadings |
| 31.03 | Mineral or chemical fertilizers, phosphatic. |
| 3103.11 | Containing by weight 35% or more of diphosphorus pentaoxide (P2O5)Superphosphates |
| 3103.19 | OtherSuperphosphates |
| 3103.90 | Other |
| 31.04 | Mineral or chemical fertilizers, potassic. |
| 3104.20 | Potassium chloride |
| 3104.30 | Potassium sulphate |
| 3104.90 | Other |
| 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. |
| 3105.10 | Goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg |
| 3105.20 | Mineral or chemical fertilizers containing the three fertilizing elements nitrogen, phosphorus and potassium |
| 3105.30 | Diammonium hydrogenorthophosphate (diammonium phosphate) |
| 3105.40 | Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate) |
| 3105.51 | Containing nitrates and phosphatesOther mineral or chemical fertilizers containing the two fertilizing elements nitrogen and phosphorus |
| 3105.59 | OtherOther mineral or chemical fertilizers containing the two fertilizing elements nitrogen and phosphorus |
| 3105.60 | Mineral or chemical fertilizers containing the two fertilizing elements phosphorus and potassium |
| 3105.90 | Other |
Official descriptions: CBSA Customs Tariff, 2026 (version 2). These are six-digit HS subheadings, shared by Canada, the United States and Mexico. Import entries need the full ten-digit code for the importing country: check the CBSA Customs Tariff for Canada or the U.S. Harmonized Tariff Schedule, and confirm the classification with your customs broker.