---
type: restriction
id: usps-division-2-3-toxic-gases-domestic-surface
asset: shipping-restrictions-by-class
title: "Division 2.3 Toxic Gases — domestic surface — Postal shipping restrictions by item category"
sources:
  - https://pe.usps.com/text/pub52/pub52c3_021.htm
source_quote: "Division 2.3 (toxic gases) are prohibited."
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "Division 2.3 Toxic Gases — domestic surface"
carrier: "USPS"
restriction_type: "prohibited"
scope: "domestic mail via surface transportation"
conditions: "Division 2.3 toxic gases are prohibited from domestic surface mail"
verified: false
unverified_fields: carrier, conditions, item_category, scope
---
**Item category:** Division 2.3 Toxic Gases — domestic surface

**Carrier:** USPS

**Restriction type:** prohibited

**Scope:** domestic mail via surface transportation

**Conditions:** Division 2.3 toxic gases are prohibited from domestic surface mail

> Division 2.3 (toxic gases) are prohibited.

Source: <https://pe.usps.com/text/pub52/pub52c3_021.htm>