Audible fire alarm systems powered by compressed gas
For Audible fire alarm systems powered by compressed gas, carrier is USPS; restriction type is restricted; scope is domestic mail via surface transportation; conditions is Acceptable via surface transportation if comply with conditions in Packaging Instruction 2E, recorded from its source on 2026-08-04.
- Item category
- Audible fire alarm systems powered by compressed gas unconfirmed
- Carrier
- USPS our reading
- Restriction type
- restricted our reading
- Scope
- domestic mail via surface transportation our reading
- Conditions
- Acceptable via surface transportation if comply with conditions in Packaging Instruction 2E
Values marked unconfirmed are shown, but we could not tie them to the quote below: Item category. Read the quote and judge them yourself.
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Audible Fire Alarm Systems: These systems, if powered by compressed gas, are acceptable in domestic mail via surface transportation if they comply with conditions in Packaging Instruction 2E
— pe.usps.com, retrieved 2026-08-04
Source
- pe.usps.comhttps://pe.usps.com/text/pub52/pub52c3_021.htm