Colorado has contracted with the following Ignition Interlock providers:
Guardian
800-499-0994
www.guardianinterlock.com
#1 A LifeSafer of CO
800-475-5490
www.lifesafer.com
1A Smart Start, Inc.
866-348-4294
www.smartstartinc.com/Colorado
Intoxalock
844-611-3710
www.intoxalock.com