---
type: restriction
id: usps-controlled-substances-dea-registered-mailers
asset: shipping-restrictions-by-class
title: "controlled substances - DEA-registered mailers — Postal shipping restrictions by item category"
sources:
  - https://pe.usps.com/text/pub52/pub52c4_020.htm
source_quote: "Controlled substances, and drugs that contain controlled substances, are acceptable in the domestic mail only under the following conditions:"
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "controlled substances - DEA-registered mailers"
carrier: "USPS"
restriction_type: "allowed"
scope: "domestic mail - between DEA-registered parties"
conditions: "Controlled substances are acceptable in domestic mail only when both mailer and addressee are registered with DEA or are exempted from DEA registration such as military, civil defense, and law enforcement personnel performing official duties"
verified: false
unverified_fields: carrier, conditions, item_category, restriction_type
---
**Item category:** controlled substances - DEA-registered mailers

**Carrier:** USPS

**Restriction type:** allowed

**Scope:** domestic mail - between DEA-registered parties

**Conditions:** Controlled substances are acceptable in domestic mail only when both mailer and addressee are registered with DEA or are exempted from DEA registration such as military, civil defense, and law enforcement personnel performing official duties

> Controlled substances, and drugs that contain controlled substances, are acceptable in the domestic mail only under the following conditions:

Source: <https://pe.usps.com/text/pub52/pub52c4_020.htm>