Import duty / Chapter 38 / Heading 3823
Heading 3823 covers 5 tariff lines in LoadLoom's table; 3 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 |
|---|---|---|---|---|
| 3823.11 | Industrial monocarboxylic fatty acids, acid oils from refining; stearic acid | specific or compound rate | Free | Free with certificate |
| 3823.12 | Industrial monocarboxylic fatty acids, acid oils from refining; oleic acid | specific or compound rate | Free | Free with certificate |
| 3823.13 | Industrial monocarboxylic fatty acids, acid oils from refining; tall oil fatty acids | 3.2% | Free | Free with certificate |
| 3823.19 | Industrial monocarboxylic fatty acids; acid oils from refining; (other than stearic acid, oleic acid or tall oil fatty acids) | 2.3% | Free | Not eligible |
| 3823.70 | Industrial fatty alcohols | 5.1% | Free | Not eligible |
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.
