Key facts
- HS subheading
- 8455.90
- Duty (MFN)
- Free
- National lines
- 2
- Tariff
- United States
- Chapter
- 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
Summary
The United States tariff splits HS 8455.90 (other parts) into 2 national lines: 8455.90.40.00 (castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455) and 8455.90.80.00 (other). Every United States line under 8455.90 is free of general (MFN) duty.
United States lines under 8455.90
The United States tariff splits HS 8455.90 (other parts) into 2 national lines: 8455.90.40.00 (castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455) and 8455.90.80.00 (other).
Every United States line under 8455.90 is free of general (MFN) duty.
- 8455.90.40.00Castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455Duty: Free
- 8455.90.80.00OtherDuty: Free
In other countries
No other national tariff on border.bot has live lines under 8455.90 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 8455.90?
The United States tariff splits HS 8455.90 (other parts) into 2 national lines: 8455.90.40.00 (castings or weldments, individually weighing less than 90 tons, for the machines of heading 8455) and 8455.90.80.00 (other).
What is the duty on HS 8455.90 in the United States?
Every United States line under 8455.90 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: