3827.69.00.00/R-134a Replacement Blend ISCEON MO99/Mexico

R-134a Replacement Blend ISCEON MO99 from Mexico

ISCEON MO99 is an HFC/HFO blend (R-448A variant) replacing R-134a in chillers and automotive AC, containing HFCs without CFCs/HCFCs. Classified under HTS 3827.69.00.00 for such mixtures. Offers lower GWP for retrofits.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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Import Tips

• Provide retrofit compatibility certificates; common issue is oil miscibility testing not documented

• Label with exact HFO/HFC ratios as HFOs may trigger separate regulations under 2903 if predominant

• Use temperature-compensated filling scales for accurate charge weights during customs weigh-in