Key facts
- HS subheading
- 8481.30
- National lines
- 5
- Tariff
- United States
- Chapter
- 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
Summary
The United States tariff splits HS 8481.30 (check (nonreturn) valves) into 5 national lines: 8481.30.10.10 (having a pressure rating under 850 kPa), 8481.30.10.90 (having a pressure rating of 850 kPa or over), 8481.30.20.10 (of iron), 8481.30.20.90 (of steel) and 1 other. The general (MFN) duty differs by line: 3% on 8481.30.10.10, 3% on 8481.30.10.90, 5% on 8481.30.20.10, 5% on 8481.30.20.90 and 3% on 8481.30.90.00.
United States lines under 8481.30
The United States tariff splits HS 8481.30 (check (nonreturn) valves) into 5 national lines: 8481.30.10.10 (having a pressure rating under 850 kPa), 8481.30.10.90 (having a pressure rating of 850 kPa or over), 8481.30.20.10 (of iron), 8481.30.20.90 (of steel) and 1 other.
The general (MFN) duty differs by line: 3% on 8481.30.10.10, 3% on 8481.30.10.90, 5% on 8481.30.20.10, 5% on 8481.30.20.90 and 3% on 8481.30.90.00.
- 8481.30.10.10Having a pressure rating under 850 kPaDuty: 3%
- 8481.30.10.90Having a pressure rating of 850 kPa or overDuty: 3%
- 8481.30.20.10Of ironDuty: 5%
- 8481.30.20.90Of steelDuty: 5%
- 8481.30.90.00OtherDuty: 3%
In other countries
No other national tariff on border.bot has live lines under 8481.30 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 8481.30?
The United States tariff splits HS 8481.30 (check (nonreturn) valves) into 5 national lines: 8481.30.10.10 (having a pressure rating under 850 kPa), 8481.30.10.90 (having a pressure rating of 850 kPa or over), 8481.30.20.10 (of iron), 8481.30.20.90 (of steel) and 1 other.
What is the duty on HS 8481.30 in the United States?
The general (MFN) duty differs by line: 3% on 8481.30.10.10, 3% on 8481.30.10.90, 5% on 8481.30.20.10, 5% on 8481.30.20.90 and 3% on 8481.30.90.00.
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: