In October, Maryland will conclude the first year under strict new DUI guidelines that require any driver convicted of DUI or any driver who refuses to take a breathalyzer test to have an ignition interlock device installed in their car.
Those who require an ignition interlock device under the Drunk Driving Reduction Act of 2016 will not be able to start their cars if they have a blood alcohol content (BAC) of .025 or greater. Once the car starts, however, this is not the end of the testing. At various intervals, drivers are required to retest. If they fail to do so within a 10-minute window, their car horns will honk, and in some cases, their lights will flash.