During the 1960's, the Teen-Aged Driver Study was undertaken in response to legislative concern over the high accident and conviction rate among teenage drivers. Since that study had to be completed rapidly, the present study was undertaken in order to provide a more comprehensive study of teenage drivers. The sample for this study consisted of 13,915 persons who were 16 or 17 years of age when licensed in five California counties in 1962-63. The driving records of persons in the sample for their first four years of driving were described and correlated with other biographical data. Data were collected from the California Department of Motor Vehicles, permanent high school records, a mail questionnaire, and personal interviews. Some findings include: (1) Those taking behind-the-wheel driver training had better driving records and more socially desirable personal characteristics than those not taking the course, (2) Citizenship grades in high school was the best predictor of accidents and convictions, and (3) The average number of accidents showed little change in the first four years of driving. (Author/GEB)