To amend title 23, United States Code, relating to minimum penalties for repeat offenders for driving while intoxicated or under the influence of alcohol.

Amends Federal highway provisions relating to minimum penalties for repeat offenders for driving while intoxicated or driving under the influence of alcohol to modify the definition of "repeat intoxicated driver law" to mean a State law that provides, as a minimum penalty, that an individual convicted of a second or subsequent offense shall receive a driver's license suspension for not less than one year and be subject to impoundment or immobilization of one or more of the individual's motor vehicles, or the installation of an ignition interlock system on one or more of the individual's motor vehicles (current law) for not less than one year.