Reference Source

Butane (UN1011) — Division 2.1 flammable gas

For Butane (UN1011), item category is Butane (UN1011) — Division 2.1 flammable gas; carrier is USPS; restriction type is restricted; scope is domestic mail via surface transportation only; conditions is Mailable via surface transportation as Limited Quantity material; must comply with quantity limits and Packaging Instruction 2A, recorded from its source on 2026-08-04.

Item category
Butane (UN1011) — Division 2.1 flammable gas unconfirmed
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; must comply with quantity limits and Packaging Instruction 2A
Sourcepe.usps.com
Verified2026-08-04
Review by2027-08-04
DatasetPostal shipping restrictions by item category

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

Butane (UN1011): Division 2.1 flammable gases. Butane or butane mixtures are mailable via surface transportation as Limited Quantity materials

pe.usps.com, retrieved 2026-08-04

Source

Last verified against source: 2026-08-04. Scheduled for re-check by: 2027-08-04. This page as Markdown · OKF concept · full dataset as JSON.