MDDP eligibility under 625 ILCS 5/6-206.1 requires: first-offender status for summary suspension purposes (no DUI conviction or prior summary suspension within 5 years), a valid Illinois driver's license at the time of arrest, no DUI causing death or great bodily harm, age 18 or older, and willingness to install a BAIID (Breath Alcohol Ignition Interlock Device) on the vehicle. Ineligibility triggers include a prior DUI-related conviction, a previously issued MDDP, a fatal DUI arrest, or driving on a suspended or revoked license at the time of the current arrest. The MDDP takes effect on day 30 of the summary suspension and restores unrestricted driving privileges as long as the driver operates only BAIID-equipped vehicles.
