# United States tariff line 8515.21.00.00: Fully or partly automatic

> In the United States tariff, line 8515.21.00.00 covers machines and apparatus for resistance welding of metal, fully or partly automatic. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8515.21 in heading 85.15 (chapter 85).

Source: https://border.bot/countries/united-states/hs-codes/8515210000
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) / [8515.21](https://border.bot/countries/united-states/hs-codes/851521) / [8515.21.00.00](https://border.bot/countries/united-states/hs-codes/8515210000)

## Key facts

- Tariff line: 8515.21.00.00
- Covers: Machines and apparatus for resistance welding of metal, fully or partly automatic
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [8515.21](https://border.bot/hs-codes/851521)

## What this line covers

In the United States tariff, line 8515.21.00.00 covers machines and apparatus for resistance welding of metal, fully or partly automatic.

Its legal text is “Fully or partly automatic”, read under “Machines and apparatus for resistance welding of metal”.

## How it is structured

It falls under HS subheading 8515.21 in heading 85.15 (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 85.15: Electric (including electrically heated gas), laser or other light or photon beam, ultrasonic, electron beam, magnetic pulse or plasma arc soldering, brazing or welding machines and apparatus, whether or not capable of cutting; electric machines and apparatus for hot spraying of metals or cermets; parts thereof
- Subheading 8515.21: Machines and apparatus for resistance welding of metal
- Line 8515.21.00.00: Fully or partly automatic

## 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 8515.21 yet.

- [The Harmonized System text for 8515.21](https://border.bot/hs-codes/851521)

- Previous line: [8515.19.00.00](https://border.bot/countries/united-states/hs-codes/8515190000) Other
- Next line: [8515.29.00.00](https://border.bot/countries/united-states/hs-codes/8515290000) Other

## Frequently asked questions

### What does tariff line 8515.21.00.00 cover in the United States tariff?

In the United States tariff, line 8515.21.00.00 covers machines and apparatus for resistance welding of metal, fully or partly automatic.

### What is the general (MFN) duty on 8515.21.00.00 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/8515210000.json