Chapter 38: Miscellaneous chemical products

HTS heading 3822: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put…

10 numbered lines under heading 3822, including 8 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 3822
HTS codeDescriptionUnitGeneralSpecialColumn 2
3822Diagnostic 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:
3822.11.00.00For malariakgFreeFree
3822.12.00.00For Zika and other diseases transmitted by mosquitoes of the genus AedeskgFreeFree
3822.13.00.00For blood-groupingkgFreeFree
3822.19.00OtherFree25%
Containing antigens or antisera:
3822.19.00.10Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloridekg
3822.19.00.30Otherkg
Other:
3822.19.00.40Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloridekg
3822.19.00.80Otherkg
3822.90.00.00Certified reference materialskgFree25%

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.