The bill amends several sections of the General Laws in Chapter 31-27, focusing on driving under the influence (DUI) offenses. It establishes a structured penalty system based on blood alcohol concentration (BAC) levels, with mandatory fines, community service, and imprisonment terms for offenders. For individuals with a BAC of 0.08% or higher, fines range from $100 to $500, and they may be required to use ignition interlock systems and undergo blood/urine testing. The bill emphasizes the importance of alcohol and drug treatment programs, particularly for servicemembers and veterans, and introduces stricter penalties for repeat offenders, including longer license suspensions and mandatory imprisonment for subsequent violations.

Additionally, the bill mandates that individuals convicted of DUI or refusing chemical tests must install ignition interlock systems in their vehicles as part of any sentence before being eligible for license reinstatement. It outlines the court's responsibilities in monitoring these systems, including proof of installation and periodic reporting. The bill establishes an "ignition interlock system fund" administered by the office of the general treasurer to assist indigent defendants who cannot afford the costs associated with the system. Furthermore, it requires that these ignition interlock systems be equipped with cameras to accurately identify the driver who provides a breath sample. Overall, the bill aims to enhance public safety by imposing stricter regulations and penalties for DUI offenses while providing support for those in need.