HFO-1234yf Refrigerant Gas from Canada
2,3,3,3-Tetrafluoropropene (HFO-1234yf) is a low global warming potential refrigerant used in automotive air conditioning systems. This unsaturated fluorinated derivative of acyclic hydrocarbons falls under HTS 2903.51.1000 due to its specific chemical structure and halogenated nature. It is supplied in pressurized cylinders for industrial and automotive applications.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Obtain EPA Significant New Alternatives Policy (SNAP) approval documentation before import
• Ensure cylinders meet DOT pressure vessel specifications and include safety data sheets
• Verify purity certificates as automotive applications require >99.5% HFO-1234yf content