Small compressed gas cylinders and cartridges in or with a device (CO2) · FAA (air transport)
For Small compressed gas cylinders and cartridges in or with a device (CO2), authority is FAA (air transport); restriction type is restricted; scope is checked baggage only; not allowed in carry-on; conditions is Up to four cartridges/cylinders of nonflammable gas; each must not exceed 50 ml (equivalent to a 28 g CO2 cartridge); larger cylinders are forbidden unless covered by another exception, recorded from its source on 2026-08-10.
- Item or substance
- Small compressed gas cylinders and cartridges in or with a device (CO2)
- Authority
- FAA (air transport) our reading
- Restriction type
- restricted our reading
- Scope
- checked baggage only; not allowed in carry-on our reading
- Conditions
- Up to four cartridges/cylinders of nonflammable gas; each must not exceed 50 ml (equivalent to a 28 g CO2 cartridge); larger cylinders are forbidden unless covered by another exception.
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
(25) Small cartridges fitted into or securely packed with devices with no more than four small cartridges of carbon dioxide or other suitable gas in Division 2.2, without subsidiary risk with the approval of the operator. The water capacity of each cartridge must not exceed 50 mL (equivalent to a 28 g cartridge).
— ecfr.gov, retrieved 2026-08-10
Source
- ecfr.govhttps://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-175/subpart-A/section-175.10