---
type: restriction
id: usps-toy-propellant-devices-un0454-or-na0323-division-1-4s
asset: shipping-restrictions-by-class
title: "Toy Propellant Devices (UN0454 or NA0323, Division 1.4S) — Postal shipping restrictions by item category"
sources:
  - https://pe.usps.com/text/pub52/pub52c3_020.htm
source_quote: "Toy Propellant Devices (e.g., model rocket motors or igniters) (UN0454 or NA0323): Classified as Division 1.4S, these devices may be mailed via surface transportation with prior written permission from the director, Product Classification"
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "Toy Propellant Devices (UN0454 or NA0323, Division 1.4S)"
carrier: "USPS"
restriction_type: "restricted"
scope: "domestic mail via surface transportation only"
conditions: "Mailable via surface transportation with prior written permission from director, Product Classification; must meet strict requirements on size, design, and packaging; shipping paper required"
verified: false
unverified_fields: carrier, conditions, item_category
---
**Item category:** Toy Propellant Devices (UN0454 or NA0323, Division 1.4S)

**Carrier:** USPS

**Restriction type:** restricted

**Scope:** domestic mail via surface transportation only

**Conditions:** Mailable via surface transportation with prior written permission from director, Product Classification; must meet strict requirements on size, design, and packaging; shipping paper required

> Toy Propellant Devices (e.g., model rocket motors or igniters) (UN0454 or NA0323): Classified as Division 1.4S, these devices may be mailed via surface transportation with prior written permission from the director, Product Classification

Source: <https://pe.usps.com/text/pub52/pub52c3_020.htm>