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

Every line of heading 3822

• 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.
• 3822.11.00.00 For malaria (under: 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) (kg): General Free; Special none; Column 2 Free.
• 3822.12.00.00 For Zika and other diseases transmitted by mosquitoes of the genus Aedes (kg): General Free; Special none; Column 2 Free.
• 3822.13.00.00 For blood-grouping (under: 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) (kg): General Free; Special none; Column 2 Free.
• 3822.19.00 Other (under: 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): General Free; Special none; Column 2 25%.
• 3822.19.00.10 Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride (kg).
• 3822.19.00.30 Other (under: Containing antigens or antisera) (kg).
• 3822.19.00.40 Containing methyl chloroform (1,1,1-trichloroethane) or carbon tetrachloride (kg).
• 3822.19.00.80 Other (under: Other) (kg).
• 3822.90.00.00 Certified reference materials (kg): General Free; Special none; Column 2 25%.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.