# United States tariff line 7308.90.30.00: Not in part of alloy steel

> In the United States tariff, line 7308.90.30.00 covers columns, pillars, posts, beams, girders and similar structural units, not in part of alloy steel. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 7308.90 in heading 73.08 (chapter 73).

Source: https://border.bot/countries/united-states/hs-codes/7308903000
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 73](https://border.bot/countries/united-states/hs-codes/73) / [7308.90](https://border.bot/countries/united-states/hs-codes/730890) / [7308.90.30.00](https://border.bot/countries/united-states/hs-codes/7308903000)

## Key facts

- Tariff line: 7308.90.30.00
- Covers: Columns, pillars, posts, beams, girders and similar structural units, not in part of alloy steel
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [7308.90](https://border.bot/hs-codes/730890)

## What this line covers

In the United States tariff, line 7308.90.30.00 covers columns, pillars, posts, beams, girders and similar structural units, not in part of alloy steel.

Its legal text is “Not in part of alloy steel”, read under “Other” and “Columns, pillars, posts, beams, girders and similar structural units”.

## How it is structured

It falls under HS subheading 7308.90 in heading 73.08 (chapter 73). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 73: Articles of iron or steel
- Heading 73.08: Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, lock gates, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns) of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel
- Subheading 7308.90: Other
- Within the subheading: Columns, pillars, posts, beams, girders and similar structural units
- Line 7308.90.30.00: Not in part of alloy steel

## 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 7308.90 yet.

- [The Harmonized System text for 7308.90](https://border.bot/hs-codes/730890)

## Other lines under 7308.90

- [7308.90.60.00](https://border.bot/countries/united-states/hs-codes/7308906000) Other
- [7308.90.70.00](https://border.bot/countries/united-states/hs-codes/7308907000) Steel grating
- [7308.90.95.30](https://border.bot/countries/united-states/hs-codes/7308909530) Sheet-metal roofing, siding, flooring and roof drainage equipment
- [7308.90.95.60](https://border.bot/countries/united-states/hs-codes/7308909560) Architectural and ornamental work
- [7308.90.95.90](https://border.bot/countries/united-states/hs-codes/7308909590) Other

- Previous line: [7308.40.00.00](https://border.bot/countries/united-states/hs-codes/7308400000) Equipment for scaffolding, shuttering, propping or pit- propping
- Next line: [7308.90.60.00](https://border.bot/countries/united-states/hs-codes/7308906000) Other

## Frequently asked questions

### What does tariff line 7308.90.30.00 cover in the United States tariff?

In the United States tariff, line 7308.90.30.00 covers columns, pillars, posts, beams, girders and similar structural units, not in part of alloy steel.

### What is the general (MFN) duty on 7308.90.30.00 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/7308903000.json