# United States tariff line 8428.31.00.00: Specially designed for underground use

> In the United States tariff, line 8428.31.00.00 covers other continuous-action elevators and conveyors, for goods or materials, specially designed for underground use. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8428.31 in heading 84.28 (chapter 84).

Source: https://border.bot/countries/united-states/hs-codes/8428310000
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) / [8428.31](https://border.bot/countries/united-states/hs-codes/842831) / [8428.31.00.00](https://border.bot/countries/united-states/hs-codes/8428310000)

## Key facts

- Tariff line: 8428.31.00.00
- Covers: Other continuous-action elevators and conveyors, for goods or materials, specially designed for underground use
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [8428.31](https://border.bot/hs-codes/842831)

## What this line covers

In the United States tariff, line 8428.31.00.00 covers other continuous-action elevators and conveyors, for goods or materials, specially designed for underground use.

Its legal text is “Specially designed for underground use”, read under “Other continuous-action elevators and conveyors, for goods or materials”.

## How it is structured

It falls under HS subheading 8428.31 in heading 84.28 (chapter 84). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
- Heading 84.28: Other lifting, handling, loading or unloading machinery (for example, elevators, escalators, conveyors, teleferics)
- Subheading 8428.31: Other continuous-action elevators and conveyors, for goods or materials
- Line 8428.31.00.00: Specially designed for underground use

## 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 8428.31 yet.

- [The Harmonized System text for 8428.31](https://border.bot/hs-codes/842831)

- Previous line: [8428.20.00.50](https://border.bot/countries/united-states/hs-codes/8428200050) Elevators
- Next line: [8428.32.00.00](https://border.bot/countries/united-states/hs-codes/8428320000) Other, bucket type

## Frequently asked questions

### What does tariff line 8428.31.00.00 cover in the United States tariff?

In the United States tariff, line 8428.31.00.00 covers other continuous-action elevators and conveyors, for goods or materials, specially designed for underground use.

### What is the general (MFN) duty on 8428.31.00.00 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/8428310000.json