SCR Catalyst for Diesel Exhaust Aftertreatment from Mexico
Selective Catalytic Reduction (SCR) converter using urea/DEF to convert NOx in diesel exhaust of commercial vehicles. HTS 8421.32.00.00 covers this catalytic apparatus for purifying internal combustion engine gases.
Duty Rate — Mexico → United States
25%
Rate breakdown
9903.94.0525%Except for products described in headings 9903.94.06, 9903.94.32, 9903.94.33, 9903.94.42, 9903.94.43, 9903.94.44, 9903.94.45, 9903.94.52, 9903.94.53, 9903.94.54, 9903.94.55, 9903.94.62, 9903.94.63, 9903.94.66 and 9903.94.67, automobile parts, as provided for in subdivision (g) of U.S. note 33 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
9903.74.110%Articles as provided for in subdivision (l) of U.S. note 38 to this subchapter.
Import Tips
• Provide NOx reduction efficiency test results from ISO 8178 cycles
• Declare vanadium or zeolite catalyst formulation accurately
• Ensure proper classification by excluding integrated DEF injectors