State Ignition Interlock Laws
Updated August 2014
Below is information on state ignition interlock laws. All 50 states have some sort of ignition interlock law. Twenty one states—Alabama, Alaska, Arizona, Arkansas, Connecticut, Delaware, Hawaii, Illinois, Kansas, Louisiana, Mississippi, Nebraska, New Hampshire, New Mexico, New York, Oregon, Tennessee, Utah, Virginia, Washington, and West Virginia—have mandatory ignition interlock provisions for all offenses. California has a pilot program in four of its largest counties. Colorado and Maine’s laws are not mandatory for a first conviction, but there are strong incentives to install an interlock device on the first conviction. In December 2013, the National Highway Traffic Safety Administrations released model guidelines for states encouraging them to adopt ignition interlock for first-time convicted drunk drivers and establish a minimum length of time in which offenders must use the interlocks. The report also contains guidelines for program administration and for venders and service providers.
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* Requires ignition interlock installation for all DUI offenses, including first time offenses.
Sources: NHTSA 2007, NCSL, 2014.
Source: National Conference of State Legislatures, 2014. The above abstracts state statutes/legislation. This report is the property of the National Conference of State Legislatures (NCSL) and is intended as a reference for state legislators and their states. NCSL makes no warranty, expressed or implied, or assumes any legal liability or responsibility for third party use of this information, or represents that its use by such third party would not infringe on privately owned rights.