# United States tariff line 8531.80.90.31: Horns

> In the United States tariff, line 8531.80.90.31 covers other apparatus, horns. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8531.80 in heading 85.31 (chapter 85).

Source: https://border.bot/countries/united-states/hs-codes/8531809031
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 85](https://border.bot/countries/united-states/hs-codes/85) / [8531.80](https://border.bot/countries/united-states/hs-codes/853180) / [8531.80.90.31](https://border.bot/countries/united-states/hs-codes/8531809031)

## Key facts

- Tariff line: 8531.80.90.31
- Covers: Other apparatus, horns
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [8531.80](https://border.bot/hs-codes/853180)

## What this line covers

In the United States tariff, line 8531.80.90.31 covers other apparatus, horns.

Its legal text is “Horns”, read under “Other apparatus” and “Other”.

## How it is structured

It falls under HS subheading 8531.80 in heading 85.31 (chapter 85). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles
- Heading 85.31: Electric sound or visual signaling apparatus (for example, bells, sirens, indicator panels, burglar or fire alarms), other than those of heading 8512 or 8530; parts thereof
- Subheading 8531.80: Other apparatus
- Within the subheading: Other
- Line 8531.80.90.31: Horns

## Duty

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

The rate is published on 8531.80.90.

## In other countries

No other national tariff on border.bot has live lines under 8531.80 yet.

- [The Harmonized System text for 8531.80](https://border.bot/hs-codes/853180)

## Other lines under 8531.80

- [8531.80.15.00](https://border.bot/countries/united-states/hs-codes/8531801500) Doorbells, chimes, buzzers and similar apparatus
- [8531.80.90.05](https://border.bot/countries/united-states/hs-codes/8531809005) Incorporating electric discharge (fluorescent) devices
- [8531.80.90.26](https://border.bot/countries/united-states/hs-codes/8531809026) Other
- [8531.80.90.41](https://border.bot/countries/united-states/hs-codes/8531809041) Other sound signaling apparatus
- [8531.80.90.51](https://border.bot/countries/united-states/hs-codes/8531809051) Other

- Previous line: [8531.80.90.26](https://border.bot/countries/united-states/hs-codes/8531809026) Other
- Next line: [8531.80.90.41](https://border.bot/countries/united-states/hs-codes/8531809041) Other sound signaling apparatus

## Frequently asked questions

### What does tariff line 8531.80.90.31 cover in the United States tariff?

In the United States tariff, line 8531.80.90.31 covers other apparatus, horns.

### What is the general (MFN) duty on 8531.80.90.31 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 8531.80.90.

## 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/8531809031.json