Under 625 ILCS 5/11-501.1, an Illinois Statutory Summary Suspension takes effect on the 46th day after the officer serves the notice of summary suspension. The 46-day window is a fixed statutory period, not a grace period. A first-offender who fails a chemical test faces a 6-month suspension; a first-offender who refuses faces 12 months. Non-first-offenders face 12 months for a failed test and 36 months for a refusal. Petitions to rescind must be filed within 90 days of the notice and are heard before the suspension takes effect when scheduling permits. A Chicago DUI lawyer files immediately to preserve MDDP timing and rescission rights.
