# United States tariff lines under HS 8456.30

> The United States tariff splits HS 8456.30 (operated by electro-discharge processes) into 4 national lines: 8456.30.10.20 (traveling wire (wire-cut) type), 8456.30.10.50 (numerically controlled), 8456.30.10.70 (other) and 8456.30.50.00 (other). The general (MFN) duty differs by line: 3.5% on 8456.30.10.20, 3.5% on 8456.30.10.50, 3.5% on 8456.30.10.70 and 2.4% on 8456.30.50.00.

Source: https://border.bot/countries/united-states/hs-codes/845630
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) / [8456.30](https://border.bot/countries/united-states/hs-codes/845630)

## Key facts

- HS subheading: [8456.30](https://border.bot/hs-codes/845630)
- National lines: 4
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8456.30

The United States tariff splits HS 8456.30 (operated by electro-discharge processes) into 4 national lines: 8456.30.10.20 (traveling wire (wire-cut) type), 8456.30.10.50 (numerically controlled), 8456.30.10.70 (other) and 8456.30.50.00 (other).

The general (MFN) duty differs by line: 3.5% on 8456.30.10.20, 3.5% on 8456.30.10.50, 3.5% on 8456.30.10.70 and 2.4% on 8456.30.50.00.

- [8456.30.10.20](https://border.bot/countries/united-states/hs-codes/8456301020) Operated by electro-discharge processes, For working metal, Traveling wire (wire-cut) type. Duty (MFN): 3.5%
- [8456.30.10.50](https://border.bot/countries/united-states/hs-codes/8456301050) Operated by electro-discharge processes, For working metal, Other, Numerically controlled. Duty (MFN): 3.5%
- [8456.30.10.70](https://border.bot/countries/united-states/hs-codes/8456301070) Operated by electro-discharge processes, For working metal, Other, Other. Duty (MFN): 3.5%
- [8456.30.50.00](https://border.bot/countries/united-states/hs-codes/8456305000) Operated by electro-discharge processes, Other. Duty (MFN): 2.4%

## In other countries

No other national tariff on border.bot has live lines under 8456.30 yet.

- [The Harmonized System text for 8456.30](https://border.bot/hs-codes/845630)

- Previous subheading: [8456.20](https://border.bot/countries/united-states/hs-codes/845620) Operated by ultrasonic processes
- Next subheading: [8456.40](https://border.bot/countries/united-states/hs-codes/845640) Operated by plasma arc process

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8456.30?

The United States tariff splits HS 8456.30 (operated by electro-discharge processes) into 4 national lines: 8456.30.10.20 (traveling wire (wire-cut) type), 8456.30.10.50 (numerically controlled), 8456.30.10.70 (other) and 8456.30.50.00 (other).

### What is the duty on HS 8456.30 in the United States?

The general (MFN) duty differs by line: 3.5% on 8456.30.10.20, 3.5% on 8456.30.10.50, 3.5% on 8456.30.10.70 and 2.4% on 8456.30.50.00.

## 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/845630.json