SCR Catalyst for Diesel Exhaust Aftertreatment from United States
A Selective Catalytic Reduction (SCR) converter using urea/DEF to convert NOx in diesel exhaust of commercial vehicles. It falls under tariff item 8421.32.00 as catalytic apparatus for purifying internal combustion engine gases.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the SCR catalyst is compatible with the vehicle's DEF system and meets Canadian emission standards
• Provide technical data sheets to CBSA for classification
• Ensure the catalyst is free of any restricted materials