TRADE PROGRAM
IEEPA Fentanyl Tariffs
Duties tied to fentanyl precursor flows from China, Canada, and Mexico
About fentanyl tariff
Tariffs imposed under IEEPA national-emergency authority in 2025 in response to fentanyl precursor flows from China, Canada, and Mexico. Carries an additional ad valorem duty on top of the column 1 general rate. The Chapter 99 codes below implement the measure.
Glossary: fentanyl tariff →Active codes
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Latest effective
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No active Chapter 99 measures are currently published for this program.
Layer fentanyl tariff into every duty calc
TariffLens automatically applies the right fentanyl tariff Chapter 99 code based on the underlying HTS, origin, and date — and shows the GRI reasoning behind the choice.
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