Import duty / Chapter 31 / Heading 3102
Heading 3102 covers 9 tariff lines in LoadLoom's table; 9 of them clear duty-free under USMCA for goods made in Canada, the US or Mexico. Published US and Canadian rates below, verified October 2026. Pick the line that matches your goods for the worked example and border steps.
| HS code | Goods | US duty | Canada duty | USMCA |
|---|---|---|---|---|
| 3102.10 | Fertilizers, mineral or chemical; nitrogenous, urea, whether or not in aqueous solution | Free | Free | Free with certificate |
| 3102.21 | Fertilizers, mineral or chemical; nitrogenous, ammonium sulphate | Free | Free | Free with certificate |
| 3102.29 | Fertilizers, mineral or chemical; nitrogenous, other than ammonium sulphate | Free | Free | Free with certificate |
| 3102.30 | Fertilizers, mineral or chemical; nitrogenous, ammonium nitrate, whether or not in aqueous solution | Free | Free | Free with certificate |
| 3102.40 | Fertilizers, mineral or chemical; ammonium nitrate with calcium carbonate or other inorganic non-fertilizing substances, mixtures thereof | Free | Free | Free with certificate |
| 3102.50 | Fertilizers, mineral or chemical; nitrogenous, sodium nitrate | Free | Free | Free with certificate |
| 3102.60 | Fertilizers, mineral or chemical; nitrogenous, double salts and mixtures of calcium nitrate and ammonium nitrate | Free | Free | Free with certificate |
| 3102.80 | Fertilizers, mineral or chemical; nitrogenous, mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution | Free | Free | Free with certificate |
| 3102.90 | Fertilizers, mineral or chemical; nitrogenous, other kinds including mixtures not specified in the foregoing subheadings | Free | Free | Free with certificate |
This page is a free reference for shippers, not a customs ruling. Final classification and duty are determined by the licensed customs broker at entry, and government amounts are always billed at actual. Rates change with each tariff edition and trade action.
