Key facts
- HS subheading
- 3822.90
- Duty (MFN)
- Free
- National lines
- 1
- Tariff
- United States
- Chapter
- 38: Miscellaneous chemical products
Summary
The United States tariff splits HS 3822.90 (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) into 1 national line: 3822.90.00.00 (certified reference materials). Every United States line under 3822.90 is free of general (MFN) duty.
United States lines under 3822.90
The United States tariff splits HS 3822.90 (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) into 1 national line: 3822.90.00.00 (certified reference materials).
Every United States line under 3822.90 is free of general (MFN) duty.
- 3822.90.00.00Certified reference materialsDuty: Free
In other countries
No other national tariff on border.bot has live lines under 3822.90 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 3822.90?
The United States tariff splits HS 3822.90 (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) into 1 national line: 3822.90.00.00 (certified reference materials).
What is the duty on HS 3822.90 in the United States?
Every United States line under 3822.90 is free of general (MFN) duty.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: