Official sources

Dmvly is an independent study app. It is not a government service and is not affiliated with, endorsed by or sponsored by any DMV, state agency or the U.S. government. The lessons, state rule summaries and practice questions are written in our own words from the official government sources below. Laws change, so always confirm with the source.

Federal sources

• USA.gov: driver's licenses and permits
• NHTSA (U.S. Department of Transportation): traffic safety
• FHWA: Manual on Uniform Traffic Control Devices (signs and markings)
• FMCSA (U.S. DOT): commercial driver's license

State sources

• Alabama (Alabama Law Enforcement Agency (ALEA) Driver License Division): Official website · Driver handbook
• Alaska (Alaska Division of Motor Vehicles): Official website · Driver handbook
• Arizona (Arizona Department of Transportation Motor Vehicle Division): Official website · Driver handbook
• Arkansas (Arkansas Office of Driver Services (DFA) and Arkansas State Police Driver Testing): Official website · Driver handbook
• California (California Department of Motor Vehicles): Official website · Driver handbook
• Colorado (Colorado Division of Motor Vehicles (Department of Revenue)): Official website · Driver handbook
• Connecticut (Connecticut Department of Motor Vehicles): Official website · Driver handbook
• Delaware (Delaware Division of Motor Vehicles): Official website · Driver handbook
• District of Columbia (District of Columbia Department of Motor Vehicles): Official website · Driver handbook
• Florida (Florida Department of Highway Safety and Motor Vehicles): Official website
• Georgia (Georgia Department of Driver Services): Official website · Driver handbook
• Hawaii (Hawaii Department of Transportation (licensing handled by county driver licensing offices)): Official website · Driver handbook
• Idaho (Idaho Transportation Department, Division of Motor Vehicles): Official website · Driver handbook
• Illinois (Illinois Secretary of State, Driver Services Department): Official website
• Indiana (Indiana Bureau of Motor Vehicles): Official website
• Iowa (Iowa Department of Transportation, Motor Vehicle Division): Official website
• Kansas (Kansas Department of Revenue, Division of Vehicles): Official website
• Kentucky (Kentucky Transportation Cabinet and Kentucky State Police (driver testing)): Official website · Driver handbook
• Louisiana (Louisiana Office of Motor Vehicles): Official website · Driver handbook
• Maine (Maine Bureau of Motor Vehicles (Secretary of State)): Official website · Driver handbook
• Maryland (Maryland Motor Vehicle Administration): Official website
• Massachusetts (Massachusetts Registry of Motor Vehicles): Official website
• Michigan (Michigan Department of State (Secretary of State)): Official website
• Minnesota (Minnesota Department of Public Safety, Driver and Vehicle Services): Official website
• Mississippi (Mississippi Department of Public Safety, Driver Service Bureau): Official website · Driver handbook
• Missouri (Missouri Department of Revenue): Official website
• Montana (Montana Department of Justice, Motor Vehicle Division): Official website · Driver handbook
• Nebraska (Nebraska Department of Motor Vehicles): Official website · Driver handbook
• Nevada (Nevada Department of Motor Vehicles): Official website · Driver handbook
• New Hampshire (New Hampshire Division of Motor Vehicles): Official website
• New Jersey (New Jersey Motor Vehicle Commission): Official website
• New Mexico (New Mexico Motor Vehicle Division): Official website
• New York (New York State Department of Motor Vehicles): Official website · Driver handbook
• North Carolina (North Carolina Division of Motor Vehicles (NCDMV)): Official website · Driver handbook
• North Dakota (North Dakota Department of Transportation (NDDOT) Driver License Division): Official website · Driver handbook
• Ohio (Ohio Bureau of Motor Vehicles (BMV)): Official website · Driver handbook
• Oklahoma (Service Oklahoma (with Oklahoma Department of Public Safety)): Official website · Driver handbook
• Oregon (Oregon Driver & Motor Vehicle Services (ODOT DMV)): Official website · Driver handbook
• Pennsylvania (Pennsylvania Department of Transportation (PennDOT) Bureau of Driver Licensing): Official website · Driver handbook
• Rhode Island (Rhode Island Division of Motor Vehicles (DMV)): Official website · Driver handbook
• South Carolina (South Carolina Department of Motor Vehicles (SCDMV)): Official website · Driver handbook
• South Dakota (South Dakota Department of Public Safety, Driver Licensing): Official website
• Tennessee (Tennessee Department of Safety and Homeland Security): Official website · Driver handbook
• Texas (Texas Department of Public Safety): Official website
• Utah (Utah Driver License Division): Official website · Driver handbook
• Vermont (Vermont Department of Motor Vehicles): Official website · Driver handbook
• Virginia (Virginia Department of Motor Vehicles): Official website · Driver handbook
• Washington (Washington State Department of Licensing): Official website · Driver handbook
• West Virginia (West Virginia Division of Motor Vehicles): Official website · Driver handbook
• Wisconsin (Wisconsin Department of Transportation, Division of Motor Vehicles): Official website · Driver handbook
• Wyoming (Wyoming Department of Transportation, Driver Services): Official website · Driver handbook