HFC-134 Refrigerant (1,1,2,2-Tetrafluoroethane) from Canada
1,1,2,2-Tetrafluoroethane (HFC-134) used as a specialty refrigerant and aerosol propellant, classified as a pure halogenated derivative of acyclic hydrocarbons under HTS 2903.45.10.00.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include detailed chemical analysis certificates verifying isomer purity and absence of HFC-134a contamination
• Comply with TSCA (Toxic Substances Control Act) import certification requirements
• Label shipments clearly as UN 3159 '1,1,2,2-TETRAFLUOROETHANE' for proper hazmat handling