# HTS 3822: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=3822). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 3822: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 3822 | Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 3006; certified reference materials: |  |  |  |  |
|  |   Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: |  |  |  |  |
| 3822.11.00.00 |     For malaria | Free |  | Free | kg |
| 3822.12.00.00 |     For Zika and other diseases transmitted by mosquitoes of the genus Aedes | Free |  | Free | kg |
| 3822.13.00.00 |     For blood-grouping | Free |  | Free | kg |
| 3822.19.00 |     Other | Free |  | 25% |  |
|  |       Containing antigens or antisera: | Free |  | 25% |  |
| 3822.19.00.10 |         Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride | Free |  | 25% | kg |
| 3822.19.00.30 |         Other | Free |  | 25% | kg |
|  |       Other: | Free |  | 25% |  |
| 3822.19.00.40 |         Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride | Free |  | 25% | kg |
| 3822.19.00.80 |         Other | Free |  | 25% | kg |
| 3822.90.00.00 |   Certified reference materials | Free |  | 25% | kg |