Colorado Department of Revenue
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Interlock Restricted License

Person Holding Car Key       

Ignition Interlock is a device that is installed on motor vehicles to prohibit individuals from operating a vehicle while under the influence of alcohol. It requires your breath sample before the engine will start and you are periodically required to provide breath samples while driving. If the device detects an elevated alcohol concentration level the vehicle will not start.

You will be required to have an Ignition Interlock device if:

 

Driving Under the Influence

  • 1st Per Se or DUI conviction
    • For violations on or after 1/1/09 and approved for early reinstatement after serving 30 days - 8 month Interlock requirement
  • 1st Per Se with a blood alcohol content of .17 or greater
    • 2 year Interlock requirement (all stops after 1/1/07)
  • 2nd Per Se (lifetime) or DUI conviction in 5 years
    • 2 year Interlock requirement
  • 3rd + Per Se or DUI in lifetime
    • 2 year Interlock requirement
  • Designated a Habitual Traffic Offender with one alcohol related driving offense after 7/1/00 -
    • 4 year Interlock requirement after serving 1 year and approved for early reinstatement

 

Refusal

  • 2nd offense
    • 1 year interlock requirement after serving 1 year revocation and approved for early reinstatement
  • 3rd + offense
    • 2 year interlock requirement after serving 1 year revocation and approved for early reinstatement

 

Drivers who fall into these categories will be allowed to reinstate only with a restricted license that limits their driving to vehicles with an approved Ignition Interlock device.
 

 

More Interlock Information: