# United States tariff line 9031.49.40.00: Coordinate-measuring machines

> In the United States tariff, line 9031.49.40.00 covers other optical instruments and appliances, coordinate-measuring machines. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 9031.49 in heading 90.31 (chapter 90).

Source: https://border.bot/countries/united-states/hs-codes/9031494000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 90](https://border.bot/countries/united-states/hs-codes/90) / [9031.49](https://border.bot/countries/united-states/hs-codes/903149) / [9031.49.40.00](https://border.bot/countries/united-states/hs-codes/9031494000)

## Key facts

- Tariff line: 9031.49.40.00
- Covers: Other optical instruments and appliances, coordinate-measuring machines
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [9031.49](https://border.bot/hs-codes/903149)

## What this line covers

In the United States tariff, line 9031.49.40.00 covers other optical instruments and appliances, coordinate-measuring machines.

Its legal text is “Coordinate-measuring machines”, read under “Other optical instruments and appliances” and “Other”.

## How it is structured

It falls under HS subheading 9031.49 in heading 90.31 (chapter 90). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 90: Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof
- Heading 90.31: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof
- Subheading 9031.49: Other optical instruments and appliances
- Within the subheading: Other
- Line 9031.49.40.00: Coordinate-measuring machines

## Duty

Goods under this line enter free of general (MFN) duty.

## In other countries

No other national tariff on border.bot has live lines under 9031.49 yet.

- [The Harmonized System text for 9031.49](https://border.bot/hs-codes/903149)

## Other lines under 9031.49

- [9031.49.10.00](https://border.bot/countries/united-states/hs-codes/9031491000) Profile projectors
- [9031.49.70.00](https://border.bot/countries/united-states/hs-codes/9031497000) For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for measuring surface particulate contamination on semiconductor devices
- [9031.49.90.00](https://border.bot/countries/united-states/hs-codes/9031499000) Other

- Previous line: [9031.49.10.00](https://border.bot/countries/united-states/hs-codes/9031491000) Profile projectors
- Next line: [9031.49.70.00](https://border.bot/countries/united-states/hs-codes/9031497000) For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for measuring surface particulate contamination on semiconductor devices

## Frequently asked questions

### What does tariff line 9031.49.40.00 cover in the United States tariff?

In the United States tariff, line 9031.49.40.00 covers other optical instruments and appliances, coordinate-measuring machines.

### What is the general (MFN) duty on 9031.49.40.00 in the United States?

Goods under this line enter 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/9031494000.json