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United States Department of TransportationUnited States Department of Transportation

Pack Safe

Small compressed gas cylinders for mechanical limbs

Quantity limits: A sufficient number of cylinders/cartridges to ensure an adequate supply for the duration of the journey.

Cylinders/cartridges containing nonflammable, nontoxic gases may be worn in mechanical limbs and spare cylinders/cartridges may be carried in carry-on or checked baggage.

See the regulation: 49 CFR 175.10(a)(12)