Drunken | Impaired Driving


drink and car keys

Drunken Driving

This page reviews current U.S. state drunk driving laws.


marijuana and car keys

Drugged Driving | Marijuana-Impaired Driving

With the passage adult use laws in four states, and medical marijuana laws in many others, there is increased interest in marijuana-impaired driving. Check out this 50-state map that shows marijuana impaired driving and state marijuana laws.

NCSL State Liaisons


gavel and handcuffs

Criminal Status of State Drunken Driving Laws

Every state has penalties for drivers who operate vehicles while intoxicated. Some do not classify impaired driving offenses as crimes, while others consider driving while intoxicated a misdemeanor criminal offense. This chart provides information about criminal charges related to driving while intoxicated for every state.


drink and car keys

State Ignition Interlock Laws

Find out state-specific laws relating to ignition interlock laws. All 50 states have some sort of ignition interlock law.