This bill establishes the Large Carnivore Act which prohibits the owning, breeding, possession, transferring of ownership, or transporting of "large carnivores," such as lions, tigers, cougars, other wild cats, and bears.

Those who currently possess these animals in the state would be allowed to keep the animals if they obtain a permit, meet certain animal care requirements, and have the animals microchipped. The bill provides for owner liability for damages caused by the large carnivore. Animal control facilities, animal shelters, zoos, circuses, and certain educational exhibitors are exempt from the possession and permit requirements of this bill.

More information:
http://www.house.mo.gov/bills071/bilsum/intro/sHB901I.htm