---
type: restriction
id: usps-organic-peroxides-division-5-2-not-qualifying-as-limited-quantity
asset: shipping-restrictions-by-class
title: "Organic peroxides (Division 5.2) not qualifying as Limited Quantity — Postal shipping restrictions by item category"
sources:
  - https://pe.usps.com/text/pub52/pub52c3_024.htm
source_quote: "Division 5.2, Organic Peroxides: Organic peroxides are nonmailable unless they qualify as Limited Quantity air or Limited Quantity surface."
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "Organic peroxides (Division 5.2) not qualifying as Limited Quantity"
carrier: "USPS"
restriction_type: "prohibited"
scope: "all mail"
conditions: "Organic peroxides are nonmailable unless they qualify as Limited Quantity air or Limited Quantity surface"
verified: false
unverified_fields: carrier, item_category, restriction_type, scope
---
**Item category:** Organic peroxides (Division 5.2) not qualifying as Limited Quantity

**Carrier:** USPS

**Restriction type:** prohibited

**Scope:** all mail

**Conditions:** Organic peroxides are nonmailable unless they qualify as Limited Quantity air or Limited Quantity surface

> Division 5.2, Organic Peroxides: Organic peroxides are nonmailable unless they qualify as Limited Quantity air or Limited Quantity surface.

Source: <https://pe.usps.com/text/pub52/pub52c3_024.htm>