Tariff reference › Chapter 38 › 3827.51.00.00
HTS 3827.51.00.00 — Containing trifluoromethane (HFC-23)
The current US import duty for Containing trifluoromethane (HFC-23) (HTS 3827.51.00.00) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included: › Containing trifluoromethane (HFC-23) or perfluorocarbons (PFCs) but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs): › Containing trifluoromethane (HFC-23)
Current US duty rate
| Column 1 (General / MFN) | 3.7% |
|---|---|
| Special (FTA programs) | Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM,P, PA, PE, S, SG) |
| Column 2 (other) | 25% |
No Chapter 99 (Section 301/232/122) cross-reference on this line; origin-specific surcharges may still apply — check the calculator.
Recent changes for this code
- 2026-07-29T01:01:01.086Z: special Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM,P, PA, PE, S, SG) → Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM,P, PA, PE, S, SG) (2026HTSRev12→2026HTSRev13)
Alert me when this code changes (free) See all recorded changes
Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=3827.51.00.00&origin=&value=. Current as of USITC 2026HTSRev13 (synced 2026-07-29).