Import duty / Chapter 38 / Heading 3812
Heading 3812 covers 4 tariff lines in LoadLoom's table; 1 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 |
|---|---|---|---|---|
| 3812.10 | Rubber accelerators; prepared | 6.5% | Free | Not eligible |
| 3812.20 | Plasticisers, compound; for rubber or plastics | 6.5% | Free | Not eligible |
| 3812.31 | Anti-oxidising preparations and other compound stabilisers; for rubber or plastics, mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) | 6.5% | Free | Free with certificate |
| 3812.39 | Anti-oxidising preparations and other compound stabilisers; for rubber or plastics, other than mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) | 6.5% | 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.
