SCR Catalyst for Diesel Exhaust Aftertreatment from Japan
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 — Japan → United States
15%
Rate breakdown
9903.94.4315%Parts of passenger vehicles and light trucks that are products of Japan as provided for in subdivision (l) of U.S. note 33 to this subchapter, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent as provided for in subdivision (m) of U.S. note 33 to this subchapter.
9903.74.110%Articles as provided for in subdivision (l) of U.S. note 38 to this subchapter.
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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