Combustible liquids — domestic air · USPS
What is the item or substance for Combustible liquids — domestic air · USPS?
For Combustible liquids, carrier is USPS; item or substance is Combustible liquids — domestic air; restriction type is restricted; scope is domestic mail via air transportation; conditions is Mailable if qualify as ID8000 materials and meet criteria; Packaging Instruction 3B must be followed, recorded from its source on 2026-08-04.
Domestic Mail via Air Transportation: Combustible liquids are mailable if they qualify as ID8000 materials
— pe.usps.com, retrieved 2026-08-04
- Item or substance
- Combustible liquids — domestic air
- Carrier
- USPS our reading
- Restriction type
- restricted our reading
- Scope
- domestic mail via air transportation our reading
- Conditions
- Mailable if qualify as ID8000 materials and meet criteria; Packaging Instruction 3B must be followed
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.
Source
- pe.usps.comhttps://pe.usps.com/text/pub52/pub52c3_022.htm