Almost 90% of people 65 and older are drivers. While older people are among the safest on the road they are more likely to use multiple medications which could interfere with driving safely. This report provides baseline information on the relationship between medical conditions, medication use, and the travel behavior of older drivers from two large national data bases: the 2009 National Household Travel Survey and the 2011 National Health and Aging Trends Study. We found that most older drivers take multiple medications and drive frequently but also self-regulate their behavior in important ways that reduce crash risk.