MS HB1609

Adds explicit "impairment" language to alcohol-related DUI offenses, requiring proof that intoxicating liquor "has impaired the person's ability to operate a motor vehicle" rather than just being under the influence

Makes ignition-interlock device installation discretionary rather than mandatory for first-offense nonadjudication cases involving alcohol, changing "must install" to "may be ordered to install"

Allows commercial driver's license holders to qualify for nonadjudication by removing the prohibition against CDL holders, but requires them to serve 2 days in jail and obtain either an intrastate-restricted commercial license for at least 1 year or downgrade to a noncommercial license

Contains a self-repealing provision with the same effective date and repeal date of July 1, 2026 and June 30, 2026, which appears to be a drafting error that would render the bill ineffective