4,600 driver records were analyzed to determine the frequency of suspension violation. A sample of 1,500 telephone surveys were then completed to measure selfreports of driving while suspended. Data from the driver records were coded into the survey format, so that interviews were individualized. Our analysis showed 34% of drivers drove while under suspension, 23% drove, but said they were not aware their licenses were under suspension and 41% did not drive. Those suspended for moving and administrative violations were the most likely to drive while under suspension and the least likely to alter their driving habits and patterns. Drivers suspended for criminal offences or medical reasons were the least likely to drive while under suspension.