A repeat DUI in Rhode Island is any DUI charge filed when you have a prior DUI conviction within the lookback window. The lookback period for enhanced repeat-offense penalties is 5 years from the prior conviction date. A second DUI within 5 years triggers mandatory minimum jail (10 days) and significantly increased fines and suspension lengths. A third DUI within 5 years is a felony with multi-year prison exposure. Prior DUI convictions from other states count for Rhode Island repeat-offense purposes if they are substantially similar to Rhode Island DUI under the Interstate Driver License Compact.