# Hydrogen peroxide solution (8% or less) — Postal shipping restrictions by item category

For Hydrogen peroxide solution (8% or less), carrier is USPS; restriction type is restricted; scope is all domestic mail; conditions is Regulated as hazardous material but must be prepared according to DMM 601.3.4, recorded from its source on 2026-08-04.

- **Item category:** Hydrogen peroxide solution (8% or less) _(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:** all domestic mail _(our reading, not quoted from the source)_
- **Conditions:** Regulated as hazardous material but must be prepared according to DMM 601.3.4

## What the source says

> Hydrogen Peroxide . Division 5.1 hydrogen peroxide solutions with an 8 percent or less hydrogen peroxide content is regulated as hazardous material but must be prepared according to DMM 601.3.4.

## Source

- https://pe.usps.com/text/pub52/pub52c3_024.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/).