# United States tariff lines under HS 6810.91

> The United States tariff splits HS 6810.91 (other articles: Prefabricated structural components for building or civil engineering) into 1 national line: 6810.91.00.00 (prefabricated structural components for building or civil engineering). Every United States line under 6810.91 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/681091
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 68](https://border.bot/countries/united-states/hs-codes/68) / [6810.91](https://border.bot/countries/united-states/hs-codes/681091)

## Key facts

- HS subheading: [6810.91](https://border.bot/hs-codes/681091)
- Duty (MFN): Free
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 68: Articles of stone, plaster, cement, asbestos, mica or similar materials

## United States lines under 6810.91

The United States tariff splits HS 6810.91 (other articles: Prefabricated structural components for building or civil engineering) into 1 national line: 6810.91.00.00 (prefabricated structural components for building or civil engineering).

Every United States line under 6810.91 is free of general (MFN) duty.

- [6810.91.00.00](https://border.bot/countries/united-states/hs-codes/6810910000) Other articles, Prefabricated structural components for building or civil engineering. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 6810.91 yet.

- [The Harmonized System text for 6810.91](https://border.bot/hs-codes/681091)

- Previous subheading: [6810.19](https://border.bot/countries/united-states/hs-codes/681019) Other
- Next subheading: [6810.99](https://border.bot/countries/united-states/hs-codes/681099) Articles of cement, of concrete or of artificial stone, whether or not reinforced

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 6810.91?

The United States tariff splits HS 6810.91 (other articles: Prefabricated structural components for building or civil engineering) into 1 national line: 6810.91.00.00 (prefabricated structural components for building or civil engineering).

### What is the duty on HS 6810.91 in the United States?

Every United States line under 6810.91 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/681091.json