A system and method for wirelessly generating a roster of drivers and passengers in transportation vehicles. A driver's or passenger's smartphone can communicate using short-range communications with the vehicle, or a smartphone in the vehicle, so that the ID associated with the phone can be linked to a vehicle ID, date and time stamped, and stored in a log or database. Any unauthorized person can be refused admittance (by not permitting the vehicle to start or otherwise being denied the right to be a driver or passenger). A downloaded application is used for this purpose. The invention also can include a secure, remote database as well as a mobile device such as a smartphone running the application, a wireless receiver/transmitter in the vehicle, and a wireless communication network such as a cellular network.