Blood Alcohol Concentration Limits for Enforcement of Impaired Driving Laws -- U.S. States - 2001

Laws for DWI and DUI vary from state-to-state. Below is a chart listing blood alcohol content BAC limits, license suspension, ignition interlock requirements and forfeiture penalties.

All 50 states and the District of Columbia have per se laws defining it as a crime to drive with a blood alcohol concentration (BAC) at or above a proscribed level, 0.08 percent.

License suspension or revocation traditionally follows conviction for alcohol-impaired driving. Under a procedure called administrative license suspension, licenses are taken before conviction when a driver fails or refuses to take a chemical test. Because administrative license suspension laws are independent of criminal procedures and are invoked right after arrest, they've been found to be more effective than traditional post-conviction sanctions. Forty-one states and the District of Columbia have administrative license suspension laws.

Forty-five states permit some offenders to drive only if their vehicles have been equipped with ignition interlocks. These devices analyze a driver's breath and disable the ignition if the driver has been drinking.

In 30 states, multiple offenders may forfeit vehicles that are driven while impaired by alcohol.

Forty-three states and Washington D.C. have laws prohibiting the driver, passengers or both from possessing an open container of alcohol in the passenger compartment of a vehicle.

State BAC Defined as illegal per se Administrative license suspension 1st offense? Restore driving privileges during suspension? Do penalties include interlock/forfeiture? Open container laws
Alabama 0.08 90 days no no/no driver/passenger
Alaska 0.08 90 days after 30 days yes/yes driver
Arizona 0.08 90 days after 30 days yes/yes driver/passenger
Arkansas 0.08 120 days yes yes/yes --
California 0.08 4 months after 30 days yes/yes

driver/passenger

Colorado 0.08 3 months yes yes/no --
Connecticut 0.08 90 days yes no/no --
Delaware 0.08 3 months no yes/no --
District of Columbia 0.08 2-90 days yes yes/no driver/passenger
Florida 0.08 6 months after 30 days yes/yes driver/passenger


State BAC Defined as illegal per se Administrative license suspension 1st offense? Restore driving privileges during suspension? Do penalties include interlock/forfeiture? Open container laws
Georgia 0.08 1 year yes yes/yes driver/passenger
Hawaii 0.08 3 months after 30 days yes/no driver/passenger
Idaho 0.08 90 days after 30 days yes/no driver/passenger
Illinois 0.08 3 months after 30 days yes/yes driver/passenger
Indiana 0.08 180 days after 30 days

yes/no

driver

Iowa 0.08 180 days after 90 days yes/no driver/passenger
Kansas 0.08 30 days no yes/no driver
Kentucky 0.08 -- -- yes/yes driver/passenger
Louisiana 0.08 90 days after 30 days yes/yes driver/passenger
Maine 0.08 90 days yes yes/yes driver/passenger


State BAC Defined as illegal per se Administrative license suspension 1st offense? Restore driving privileges during suspension? Do penalties include interlock/forfeiture? Open container laws
Maryland 0.08 45 days yes yes/no driver/passenger
Massachusetts 0.08 90 days no no/no driver/passenger
Michigan 0.08 -- -- yes/yes driver/passenger
Minnesota 0.08
(eff. 08/01/05)
90 days after 15 days yes/yes driver/passenger
Mississippi 0.08 90 days no yes/yes

--

Missouri 0.08 30 days no yes/yes --
Montana 0.08 -- -- yes/yes driver/passenger
Nebraska 0.08 90 days after 30 days yes/no driver/passenger
Nevada 0.08 90 days after 45 days yes/no driver/passenger
New Hampshire 0.08 6 months no yes/no driver/passenger


State BAC Defined as illegal per se Administrative license suspension 1st offense? Restore driving privileges during suspension? Do penalties include interlock/forfeiture? Open container laws
New Jersey 0.08 -- -- yes/no driver/passenger
New Mexico 0.08 90 days after 30 days yes/no driver/passenger
New York 0.08 variable yes yes/yes driver/passenger
North Carolina 0.08 30 days after 10 days yes/yes driver/passenger
North Dakota 0.08 91 days after 30 days yes/yes

driver/passenger

Ohio 0.08 90 days after 15 days yes/yes driver/passenger
Oklahoma 0.08 180 days yes yes/yes driver
Oregon 0.08 90 days after 30 days yes/yes driver/passenger
Pennsylvania 0.08 -- -- yes/yes driver/passenger
Rhode Island 0.08 -- -- yes/yes driver


State BAC Defined as illegal per se Administrative license suspension 1st offense? Restore driving privileges during suspension? Do penalties include interlock/forfeiture? Open container laws
South Carolina 0.08 -- -- yes/yes driver/passenger
South Dakota 0.08 -- -- no/no driver/passenger
Tennessee 0.08 -- -- yes/yes driver
Texas 0.08 90 days yes yes/yes driver/passenger
Utah 0.08 90 days no yes/no

driver/passenger

Vermont 0.08 90 days no no/yes driver/passenger
Virginia 0.08 7 days no yes/yes
Washington 0.08 90 days after 30 days yes/yes driver/passenger
West Virginia 0.08 6 months after 30 days yes/no --
Wisconsin 0.08 6 months yes yes/yes driver/passenger
Wyoming 0.08 90 days yes no/no driver

 

[profiler]
Memory usage: real: 11534336, emalloc: 11109216
Code ProfilerTimeCntEmallocRealMem