Question Drivers must use their seat belt: Answers Unless they are driving a vehicle built before 1978. Unless they are driving a limousine. And failure to do so will result in a traffic ticket. Explanation Drivers must always wear seat belts and may be cited for failure to do so. Pass your DMV Written Test with flying colors Take me to the cheat sheet California This questions appears in the following tests: California Practice Test 35 California Practice Test 2