House Bill 554 Summary

• Extends first-offense DUI license suspension from 90 days to 180 days, followed by 150 days on an ignition-interlock-restricted license after a mandatory 30-day suspension.

• Prohibits holders of commercial driver's licenses or commercial learner's permits from receiving nonadjudication for first-offense DUI violations.

• Requires 180 days on an ignition-interlock-restricted license as a condition for nonadjudication eligibility for first-offense DUI violations.

• Mandates impoundment or immobilization of all vehicles registered to a person convicted of second or subsequent DUI offenses for the entire license suspension period, unless a court orders ignition-interlock installation instead.

• Creates new misdemeanor offense for tampering with or circumventing vehicle impoundment, immobilization, or ignition-interlock devices, with penalties of $250–$1,000 fine or up to one year imprisonment.

• Adds five-year waiting period before expunction of first-offense DUI convictions can take effect, and excludes commercial driver's license holders from expunction eligibility.