You are here

Status of State Ignition Interlock Laws

Description: 

Mothers Against Drunk Driving (MADD) maintains a website listing the status of state laws regarding alcohol ignition interlocks. An alcohol ignition interlock is a small device which is installed into the starting circuit of a vehicle. A driver must blow into the device; the vehicle will not start if the driver has measurable alcohol (set to a predetermined level) in their system. If the driver does not have alcohol above the measurable level, the vehicle will start. Interlocks may be set for "running retests," which require a driver to provide breath tests at regular intervals, preventing drivers from asking a sober friend to start the car.

Data Years Available: 
N/A
Periodicity: 
N/A
Mode of Collection: 
N/A
Selected Content: 
N/A
Population Covered: 
N/A
Methodology: 
N/A
Response Rates and Sample Size: 
N/A
Interpretation Issues: 
N/A
References: 

http://www.madd.org/drunk-driving/campaign/status-of-state-ignition.html and related web pages. Accessed September 10, 2010.