KY HB857

Third DUI offense within 10 years elevated from misdemeanor to Class D felony, eliminating the previous fourth-offense threshold for felony charges

Underage DUI penalties (under 21 with BAC 0.02+) increased: first offense fine raised from $100 to $200; second offense adds $350-$500 fine plus 20 hours community service; third offense requires $500-$1,000 fine plus 40 hours community service

Second and subsequent underage DUI offenses now trigger ignition interlock license requirements with 12-18 month suspension periods for second offense and 18-36 months for third or subsequent offenses

Ignition interlock device consecutive-day requirements apply to subsequent underage DUI offenses: 120 consecutive violation-free days required for all offenses after the first

Amends KRS 189A.010, 189A.070, 189A.040, 189A.200, 189A.240, 189A.340, and 281A.2102 to implement these changes throughout Kentucky's DUI statutory framework