Skip Navigation
In This Section:
Search the Data About the Data Data Sources

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.

Supplier

Mothers Against Drunk Driving (MADD)

Data Years Available

N/A

Periodicity

N/A

Mode

N/A

Selected Content

N/A

Population covered

N/A

Methodology

N/A

Response rate 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.