Reference Source

Propane — Division 2.1 flammable gas · USPS

What is the item or substance for Propane — Division 2.1 flammable gas · USPS?

For Propane, carrier is USPS; item or substance is Propane — Division 2.1 flammable gas; restriction type is restricted; scope is domestic mail via surface transportation only; conditions is Mailable via surface transportation as Limited Quantity material only; air transportation is prohibited, recorded from its source on 2026-08-04.

Propane: Division 2.1 flammable gas. Propane is mailable via surface transportation as a Limited Quantity material only. Air transportation is prohibited.

— pe.usps.com, retrieved 2026-08-04

Item or substance
Propane — Division 2.1 flammable gas
Carrier
USPS our reading
Restriction type
restricted our reading
Scope
domestic mail via surface transportation only our reading
Conditions
Mailable via surface transportation as Limited Quantity material only; air transportation is prohibited
Sourcepe.usps.com
Verified
Review by
DatasetWhat can be mailed: USPS hazardous materials, plus item rules for post and couriers

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

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