Import duty / Chapter 39 / Heading 3902
Heading 3902 covers 4 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 |
|---|---|---|---|---|
| 3902.10 | Propylene, other olefin polymers; polypropylene in primary forms | 6.5% | Free | Free with certificate |
| 3902.20 | Propylene, other olefin polymers; polyisobutylene in primary forms | Free | Free | Not eligible |
| 3902.30 | Propylene, other olefin polymers; propylene copolymers in primary forms | 6.5% | Free | Free with certificate |
| 3902.90 | Propylene, other olefin polymers; n.e.c. in heading no. 3902, in primary forms | 6.5% | 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.
