Dry ice (2.5 kg / 5.5 lbs or less, packing perishables) · FAA (air transport)
For Dry ice (2.5 kg / 5.5 lbs or less, packing perishables), authority is FAA (air transport); restriction type is restricted; scope is carry-on and checked baggage; conditions is Airline approval required; packages must not be air-tight and must allow the release of carbon dioxide gas; checked packages must be marked with contents and quantity, recorded from its source on 2026-08-10.
- Item or substance
- Dry ice (2.5 kg / 5.5 lbs or less, packing perishables)
- Authority
- FAA (air transport) our reading
- Restriction type
- restricted our reading
- Scope
- carry-on and checked baggage our reading
- Conditions
- Airline approval required; packages must not be air-tight and must allow the release of carbon dioxide gas; checked packages must be marked with contents and quantity.
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
Carbon dioxide, solid, 2.5 kg (5.5 lbs) or less, when used to pack perishables Quantity limit: 2.5 kg (5.5 lbs) per package and per passenger. Airline approval is required. Packages must NOT be air tight and must allow for venting and the release of carbon dioxide gas. When in checked baggage, the package must be marked "Dry ice" or "Carbon dioxide, solid" and marked with the net quantity of dry ice, or an indication that it is 2.5 kg (5.5 lbs) or less.
— faa.gov, retrieved 2026-08-10
Source
- faa.govhttps://www.faa.gov/hazmat/packsafe/dry-ice