HFC-134a with Stabilizer Additive from Canada
HFC-134a containing proprietary stabilizer (<0.1%) for metal corrosion prevention during storage and transport. Chapter Note (f) allows classification under HTS 2903.45.10.00 when stabilizer is necessary for preservation.
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
• Document stabilizer composition and concentration to justify Chapter Note (f) classification
• Provide evidence stabilizer is solely for preservation, not functional performance enhancement
• Maintain stabilizer addition records for CBP verification during liquid vs gas phase analysis