---
type: restriction
id: usps-dry-ice-domestic-air
asset: shipping-restrictions-by-class
title: "Dry ice — domestic air — Postal shipping restrictions by item category"
sources:
  - https://pe.usps.com/text/pub52/pub52c3_028.htm
source_quote: "Domestic Mail via Air Transportation: Dry ice is permitted in quantities of up to 5 pounds per mailpiece."
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "Dry ice — domestic air"
carrier: "USPS"
restriction_type: "restricted"
scope: "domestic mail via air transportation"
conditions: "Permitted in quantities of up to 5 pounds per mailpiece; must comply with Packaging Instruction 9A"
verified: false
unverified_fields: conditions, item_category
---
**Item category:** Dry ice — domestic air

**Carrier:** USPS

**Restriction type:** restricted

**Scope:** domestic mail via air transportation

**Conditions:** Permitted in quantities of up to 5 pounds per mailpiece; must comply with Packaging Instruction 9A

> Domestic Mail via Air Transportation: Dry ice is permitted in quantities of up to 5 pounds per mailpiece.

Source: <https://pe.usps.com/text/pub52/pub52c3_028.htm>