Ignition Interlock

What is an Ignition Interlock device?

An ignition interlock or a breath alcohol ignition interlock device is a breathalyzer for an individual’s vehicle. You may have also heard this device referred to as a “blow and go device”. This is an instrument that requires the driver to blow into a mouthpiece of a device prior to being able to start the vehicle. The vehicle prevents the engine from being started if the result of the breath test is greater than the programmed blood alcohol concentration.

Photo from smartstartinc.com

Photo from smartstartinc.com

When is an ignition interlock required?

An ignition interlock device is required most often in situations where an individual has been convicted of a driving while impaired offense in which the reported blood alcohol content at the time of driving was 0.15 or higher.

North Carolina General Statutes §§ 20-17.8 (b) (1), 20-179.3 (g3) (2), and 20-179.3 (i) (2) set out those instances in which a driver’s operation of a motor vehicle is limited by law to a vehicle that is equipped with a functioning ignition interlock system.

See also http://www.ncga.state.nc.us…gs_20-17.8.html

How do I get an ignition interlock device?

Contact information for ignition interlock providers in North Carolina:

ALCOLOCK NC, Inc. 1-855-664-0353


Monitech, Inc. 1-800-521-4246


Smart Start, Inc. 1-800-880-3394


See also https://www.ncdot.gov…ignitioninterlock/

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Jon Welborn

Jon is an experienced trial attorney with over 10 years litigating a variety of cases in all NC Trial Courts. Be sure to visit us on FacebookTwitter, and Instagram