Laws & Regulations

Impaired Driving

Digest of State Alcohol Highway Safety-Related Legislation

The National Highway Traffic Safety Administration is responsible for reducing vehicle-related fatalities and injuries on our Nation’s highways. This digest reports the status of State laws concerning impaired-driving offenses and alcoholic beverage control.

It is extensively footnoted and contains comprehensive information on critical impaired-driving laws for all 50 States, the District of Columbia, and Puerto Rico. It is designed to be an easily accessible reference to all States’ current laws on alcohol and other issues related to impaired driving.

The digest contains a selection of the most important laws pertaining to impaired driving for each State, compiled in a consistent format to make research simpler. Each State entry includes: Basis for a DWI Offense; Chemical Breath Tests for Alcohol Concentration; Adjudication of Driving While Intoxicated (DWI) Charges; Sanctions; Administrative Licensing Actions; Ignition Interlocks; Sobriety Checkpoints; Other Criminal Actions Related to DWI; DWI Offenses and Commercial Motor Vehicles; Driving While License Suspended or Revoked Where the Basis Was a DWI Offense; Minimum Drinking Age Laws; Dram Shop Laws and Related Actions; Open Container Laws; and others.

Digest of Impaired Driving and Selected Beverage Control Laws:

Download and View All Digests since 1983 (FTP site). Note: There was no 22nd Edition produced, and a copy of the 21st Edition will be available soon.