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US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2026 HTS Revision 11 (07/01/2026))
| HTS Code | 8443393000 | 8421320000 |
| Article Description | Incorporating an optical system | Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines |
| Quota of Quantity | -- | -- |
| Unit of Quantity | [No.] | [No.] |
| Rates of Duty (1-General) | Free | Free |
| Rates of Duty (1-Special) | -- | -- |
| Rates of Duty (2-Cuba and North Korea) | 35% | 35% |
| Footnotes | [{columns=[general], value=See 9903.88.03., type=endnote}] | [{columns=[general], value=See 9903.88.01. , type=endnote}] |
| Additional Duty | -- | -- |
| Additional Duty(products of China) | -- | -- |