# United States tariff lines under HS 7311.00

> The United States tariff splits HS 7311.00 (containers for compressed or liquefied gas, of iron or steel) into 3 national lines: 7311.00.00.30 (seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number), 7311.00.00.60 (other) and 7311.00.00.90 (other). Every United States line under 7311.00 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/731100
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) / [7311.00](https://border.bot/countries/united-states/hs-codes/731100)

## Key facts

- HS subheading: [7311.00](https://border.bot/hs-codes/731100)
- Duty (MFN): Free
- National lines: 3
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 73: Articles of iron or steel

## United States lines under 7311.00

The United States tariff splits HS 7311.00 (containers for compressed or liquefied gas, of iron or steel) into 3 national lines: 7311.00.00.30 (seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number), 7311.00.00.60 (other) and 7311.00.00.90 (other).

Every United States line under 7311.00 is free of general (MFN) duty.

- [7311.00.00.30](https://border.bot/countries/united-states/hs-codes/7311000030) Certified prior to exportation to have been made in accordance with the safety requirements of sections 178.36 through 178.68 of title 49 CFR or under a specific exemption to those requirements, Seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number. Duty (MFN): free
- [7311.00.00.60](https://border.bot/countries/united-states/hs-codes/7311000060) Certified prior to exportation to have been made in accordance with the safety requirements of sections 178.36 through 178.68 of title 49 CFR or under a specific exemption to those requirements, Other. Duty (MFN): free
- [7311.00.00.90](https://border.bot/countries/united-states/hs-codes/7311000090) Other. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 7311.00 yet.

- [The Harmonized System text for 7311.00](https://border.bot/hs-codes/731100)

- Previous subheading: [7310.29](https://border.bot/countries/united-states/hs-codes/731029) Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment
- Next subheading: [7312.10](https://border.bot/countries/united-states/hs-codes/731210) Stranded wire, ropes and cables

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 7311.00?

The United States tariff splits HS 7311.00 (containers for compressed or liquefied gas, of iron or steel) into 3 national lines: 7311.00.00.30 (seamless steel containers not overwrapped, marked DOT 3A, 3AX, 3AA, 3AAX, 3B, 3E, 3HT, 3T or DOT-E followed by a specific exemption number), 7311.00.00.60 (other) and 7311.00.00.90 (other).

### What is the duty on HS 7311.00 in the United States?

Every United States line under 7311.00 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/731100.json