# Liquid with flashpoint above 200 F (93 C) — Postal shipping restrictions by item category

For Liquid with flashpoint above 200 F (93 C), carrier is USPS; restriction type is allowed; scope is all mail; conditions is Not regulated as hazardous material; mailable subject to general packaging requirements in DMM 601 provided it has no characteristics of another hazard class, recorded from its source on 2026-08-04.

- **Item category:** Liquid with flashpoint above 200 F (93 C) _(unconfirmed — we could not tie this to the quote below)_
- **Carrier:** USPS _(our reading, not quoted from the source)_
- **Restriction type:** allowed _(our reading, not quoted from the source)_
- **Scope:** all mail _(our reading, not quoted from the source)_
- **Conditions:** Not regulated as hazardous material; mailable subject to general packaging requirements in DMM 601 provided it has no characteristics of another hazard class _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> A liquid with a flashpoint above 200° F (93° C) is not regulated as a hazardous material and may be mailed subject to the general packaging requirements in DMM 601

## Source

- https://pe.usps.com/text/pub52/pub52c3_022.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/).