R-449A Low-GWP Refrigerant from Canada
R-449A (HFC/HFO mix of R-32, R-125, R-134a, HFO-1234yf) replaces R-404A in transport refrigeration. HTS 3827.69.00.00 for HFC-dominant blends without CFCs/HCFCs. Reduces carbon footprint in cold chain logistics.
Duty Rate — Canada → United States
13.7%
Rate breakdown
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
• Apply for HFC production/import allowances under AIM Act 2020 phasedown
• Document azeotropic stability—no fractionation in storage per ASHRAE standards
• Avoid recharge kits misclassification—declare as virgin product only