# Division 2.2 Nonflammable Gases — domestic air — Postal shipping restrictions by item category

For Division 2.2 Nonflammable Gases, item category is Division 2.2 Nonflammable Gases — domestic air; carrier is USPS; restriction type is restricted; scope is domestic mail via air transportation; conditions is Generally permitted if qualifies as ID8000 material and meets quantity limits and packaging requirements, recorded from its source on 2026-08-04.

- **Item category:** Division 2.2 Nonflammable Gases — domestic air _(unconfirmed — we could not tie this to the quote below)_
- **Carrier:** USPS _(our reading, not quoted from the source)_
- **Restriction type:** restricted _(our reading, not quoted from the source)_
- **Scope:** domestic mail via air transportation _(our reading, not quoted from the source)_
- **Conditions:** Generally permitted if qualifies as ID8000 material and meets quantity limits and packaging requirements _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> Division 2.2 (nonflammable gases) are generally permitted if the material can qualify as an ID8000 material

## Source

- https://pe.usps.com/text/pub52/pub52c3_021.htm

Last verified: 2026-08-04. Review by: 2027-08-04.
Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).