# United States tariff lines under HS 8442.40

> The United States tariff splits HS 8442.40 (parts of the foregoing machinery, apparatus or equipment) into 1 national line: 8442.40.00.00 (parts of the foregoing machinery, apparatus or equipment). Every United States line under 8442.40 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/844240
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) / [8442.40](https://border.bot/countries/united-states/hs-codes/844240)

## Key facts

- HS subheading: [8442.40](https://border.bot/hs-codes/844240)
- Duty (MFN): Free
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

## United States lines under 8442.40

The United States tariff splits HS 8442.40 (parts of the foregoing machinery, apparatus or equipment) into 1 national line: 8442.40.00.00 (parts of the foregoing machinery, apparatus or equipment).

Every United States line under 8442.40 is free of general (MFN) duty.

- [8442.40.00.00](https://border.bot/countries/united-states/hs-codes/8442400000) Parts of the foregoing machinery, apparatus or equipment. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 8442.40 yet.

- [The Harmonized System text for 8442.40](https://border.bot/hs-codes/844240)

- Previous subheading: [8442.30](https://border.bot/countries/united-states/hs-codes/844230) Machinery, apparatus and equipment (other than the machines of headings 8456 to 8465), for preparing or making plates, cylinders or other printing components; plates, cylinders and other printing components; plates, cylinders and lithographic stones, prepared for printing purposes (for example, planed, grained or polished); parts thereof
- Next subheading: [8442.50](https://border.bot/countries/united-states/hs-codes/844250) Plates, cylinders and other printing components; plates, cylinders and lithographic stones, prepared for printing purposes (for example, planed, grained or polished)

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8442.40?

The United States tariff splits HS 8442.40 (parts of the foregoing machinery, apparatus or equipment) into 1 national line: 8442.40.00.00 (parts of the foregoing machinery, apparatus or equipment).

### What is the duty on HS 8442.40 in the United States?

Every United States line under 8442.40 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:

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

Machine-readable: https://border.bot/countries/united-states/hs-codes/844240.json