PFOS Aviation Fuel Additive from Mexico
A specialty chemical additive containing perfluorooctane sulfonic acid (PFOS), used in aviation fuel systems for anti-icing and corrosion protection. It is a mixture or preparation that falls under tariff item 3824.87.00 because it contains a substance specified in Subheading Note 3 to Chapter 38.
Duty Rate — Mexico → Canada
0%
Import Tips
• Verify that the additive contains perfluorooctane sulfonic acid and is not a separate chemically defined compound, which would fall under Chapter 29
• Ensure the product is not classifiable under a more specific heading by name or function, per Section VI Note 4
• Declare the PFOS content accurately to CBSA, as these substances are regulated under Canadian environmental laws