The city of San Bernardino is a member of the joint-powers authority of Omnitrans and MARTA. A bus rapid transit corridor, called sbX Green Line, connects the north part of the city near California State University, San Bernardino and the Verdemont Hills area with the Jerry L. Pettis VA Medical Center in Loma Linda, CA. Additional bus routes and on-demand shuttle service for the disabled and elderly is also provided by Omnitrans. MARTA provides a connection between downtown and the mountain communities.