Verification of Transit Training. The VTT card is a certificate issued by the California Department of Motor Vehicles (DMV) which verifies that a bus operator has received the required eight hours of annual training. The state specifies the general topics which include safety and passenger handling and requires the instructors to be either state or federally certified. MTA Transit Operations Supervisor (TOS) instructors, who are all federally certified, provide the training. The operator must carry the VTT card along with his or her commercial driving license and medical certificate.