Yes! Each passenger may carry two lifejackets each with a maximum of two (2) CO₂ cartridges per lifejacket and no more than two spare cartridges in their luggage. Generally, there is no size limit for CO₂ cartridges in lifejackets. These rules are developed by the “Dangerous Goods Panel” of the ICAO, a sub-organization of the UN, and incorporated into the ICAO T.I. released regulations so they are valid worldwide. They are also included in the dangerous goods regulations (DGR) of the IATA. Unfortunately, some airlines incorporate size limits for CO₂ cartridges that may complicate travling with lifejackets.

The ISO 12401 standard specifies the requirements for performance, sizing, marking and test methods for deck safety harnesses and safety lines.