# United States tariff lines under HS 8109.31

> The United States tariff splits HS 8109.31 (waste and scrap: Containing less than 1 part hafnium to 500 parts zirconium by weight) into 1 national line: 8109.31.00.00 (containing less than 1 part hafnium to 500 parts zirconium by weight). Every United States line under 8109.31 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/810931
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 81](https://border.bot/countries/united-states/hs-codes/81) / [8109.31](https://border.bot/countries/united-states/hs-codes/810931)

## Key facts

- HS subheading: [8109.31](https://border.bot/hs-codes/810931)
- Duty (MFN): Free
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 81: Other base metals; cermets; articles thereof

## United States lines under 8109.31

The United States tariff splits HS 8109.31 (waste and scrap: Containing less than 1 part hafnium to 500 parts zirconium by weight) into 1 national line: 8109.31.00.00 (containing less than 1 part hafnium to 500 parts zirconium by weight).

Every United States line under 8109.31 is free of general (MFN) duty.

- [8109.31.00.00](https://border.bot/countries/united-states/hs-codes/8109310000) Waste and scrap, Containing less than 1 part hafnium to 500 parts zirconium by weight. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 8109.31 yet.

- [The Harmonized System text for 8109.31](https://border.bot/hs-codes/810931)

- Previous subheading: [8109.29](https://border.bot/countries/united-states/hs-codes/810929) Zirconium and articles thereof, including waste and scrap
- Next subheading: [8109.39](https://border.bot/countries/united-states/hs-codes/810939) Zirconium and articles thereof, including waste and scrap

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 8109.31?

The United States tariff splits HS 8109.31 (waste and scrap: Containing less than 1 part hafnium to 500 parts zirconium by weight) into 1 national line: 8109.31.00.00 (containing less than 1 part hafnium to 500 parts zirconium by weight).

### What is the duty on HS 8109.31 in the United States?

Every United States line under 8109.31 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/810931.json