MADD joins Maryland Gov. Moore in 2024 as he signed a bill that closed a loophole on Noah’s Law.
5.7 Million Drunk Driving Attempts Stopped Since 2006
Research and studies demonstrate ignition interlocks are an effective tool to stop drunk driving, save lives and change behavior. But how many times have these devices stopped someone from driving drunk? MADD set out to answer this question 10 years ago and released the first-ever report detailing the number of times an ignition interlock stopped a convicted drunk driver from driving with a breath alcohol concentration (BAC) of .08 or greater. The findings were shocking: Ignition interlocks had stopped millions of attempts to drive drunk, preventing repeat offenses and potential deaths and injuries.
MADD builds on this data each year, collecting both national and state-specific statistics to help educate state policymakers, elected officials and the public on the lifesaving benefits of strong ignition interlock laws. The data show that ignition interlocks are making a real difference to stop this crime. Since MADD began its focus on all-offender ignition interlock laws in 2006, the devices have stopped nearly 5.7 million attempts to drive drunk with a BAC of .08 or greater, including over 335,000 in 2025 alone.
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