# United States tariff lines under HS 8456.20

> The United States tariff splits HS 8456.20 (operated by ultrasonic processes) into 3 national lines: 8456.20.10.10 (numerically controlled), 8456.20.10.50 (other) and 8456.20.50.00 (other). The general (MFN) duty differs by line: 3.5% on 8456.20.10.10, 3.5% on 8456.20.10.50 and 2.4% on 8456.20.50.00.

Source: https://border.bot/countries/united-states/hs-codes/845620
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 84](https://border.bot/countries/united-states/hs-codes/84) / [8456.20](https://border.bot/countries/united-states/hs-codes/845620)

## Key facts

- HS subheading: [8456.20](https://border.bot/hs-codes/845620)
- National lines: 3
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8456.20

The United States tariff splits HS 8456.20 (operated by ultrasonic processes) into 3 national lines: 8456.20.10.10 (numerically controlled), 8456.20.10.50 (other) and 8456.20.50.00 (other).

The general (MFN) duty differs by line: 3.5% on 8456.20.10.10, 3.5% on 8456.20.10.50 and 2.4% on 8456.20.50.00.

- [8456.20.10.10](https://border.bot/countries/united-states/hs-codes/8456201010) Operated by ultrasonic processes, For working metal, Numerically controlled. Duty (MFN): 3.5%
- [8456.20.10.50](https://border.bot/countries/united-states/hs-codes/8456201050) Operated by ultrasonic processes, For working metal, Other. Duty (MFN): 3.5%
- [8456.20.50.00](https://border.bot/countries/united-states/hs-codes/8456205000) Operated by ultrasonic processes, Other. Duty (MFN): 2.4%

## In other countries

No other national tariff on border.bot has live lines under 8456.20 yet.

- [The Harmonized System text for 8456.20](https://border.bot/hs-codes/845620)

- Previous subheading: [8456.12](https://border.bot/countries/united-states/hs-codes/845612) Operated by other light or photon beam processes
- Next subheading: [8456.30](https://border.bot/countries/united-states/hs-codes/845630) Operated by electro-discharge processes

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8456.20?

The United States tariff splits HS 8456.20 (operated by ultrasonic processes) into 3 national lines: 8456.20.10.10 (numerically controlled), 8456.20.10.50 (other) and 8456.20.50.00 (other).

### What is the duty on HS 8456.20 in the United States?

The general (MFN) duty differs by line: 3.5% on 8456.20.10.10, 3.5% on 8456.20.10.50 and 2.4% on 8456.20.50.00.

## 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:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/845620.json