14 CFR 254.4: Carrier liability.

On any flight segment using large aircraft, or on any flight segment that is included on the same ticket as another flight segment that uses large aircraft, an air carrier shall not limit its liability for provable direct or consequential damages resulting from the disappearance of, damage to, or delay in delivery of a passenger's personal property, including baggage, in its custody to an amount less than $4,700 for each passenger.