Import duty / Chapter 29 / Heading 2937
Heading 2937 covers 9 tariff lines in LoadLoom's table; 6 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 |
|---|---|---|---|---|
| 2937.11 | Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues; somatotropin, its derivatives and structural analogues | Free | Free | Free with certificate |
| 2937.12 | Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues; insulin and its salts | Free | Free | Free with certificate |
| 2937.19 | Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues; other than somatotropin, (its derivatives and structural anaologues) and insulin and its salts | Free | Free | Free with certificate |
| 2937.21 | Steroidal hormones, their derivatives and structural analogues; cortisone, hydrocortisone, prednisone (dehydrocortisone) and prednisolone (dehydrohydrocortisone) | Free | Free | Free with certificate |
| 2937.22 | Steroidal hormones, their derivatives and structural analogues; halogenated derivatives of corticosteroidal hormones | Free | Free | Free with certificate |
| 2937.23 | Steroidal hormones, their derivatives and structural analogues; oestrogens and progestogens | Free | Free | Not eligible |
| 2937.29 | Steroidal hormones, their derivatives and structural analogues; other than cortisone, hydrocortisone, prednisone (dehydrocortisone), prednisolone (dehydrohydrocortisone), halogenated derivatives of corticosteroidal hormones, oestrogen and progestogens | Free | Free | Not eligible |
| 2937.50 | Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues | Free | Free | Free with certificate |
| 2937.90 | Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones, n.e.c. in heading 2937 | Free | 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.
