Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3827.51.00.00Tariff line
Classification path
Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included
3827
Containing trifluoromethane (HFC-23) or perfluorocarbons (PFCs) but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs)
Containing trifluoromethane (HFC-23)
3827.51.00.00
Rates of duty
General rate (Column 1)3.7%
SpecialFree (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 225%
Unitkg
Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1682
Measure flags
for origin CN, entry date 2026-10-26 · base rate 3.7%
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 3827.51.00 is on L3
- AD/CVD: 4 orders in placeConditional—Cash deposits follow the company-specific rate (ACE case module). Coverage depends on each order's scope. The table below lists case numbers, status and the all-others rate. The all-others deposit rate is counted in the maximum exposure, not in the confirmed total.
- AD/CVD 4 casesConditionalAD 267.51% + CVD 14.43% / AD 221.06% / AD 216.37%A570137 / C570138; A570121; A570028
- PGAEPA EH1EPA EP7
Confirmed total 41.2% · max 323.14%Full duty breakdown →