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Madison County emissions & inspection rules

Madison County, Illinois

Short answer: Depends on your address for most vehicles

EmissionsEmissions test in the Chicago area (Cook, DuPage, Lake and parts of Kane, Kendall, McHenry and Will) and Metro East (parts of Madison, Monroe and St. Clair) for most 1996+ gasoline vehicles once they are four years old. The official test is free.
Kane, Kendall, McHenry, Will, Madison, Monroe and St. Clair are only partly covered (by ZIP code).
SafetyNo periodic safety inspection for personal vehicles.
Official emissions testFree Free of charge
Source: Illinois EPA testing FAQ (PDF)
Find a stationIllinois Air Team testing locations

Sources: Illinois EPA: Vehicle Emissions Testing Program · Illinois Air Team: Does my vehicle need to be tested?. Checked 2026-10-04.

Stations in Madison County

Use the official Illinois Air Team testing locations to find a licensed station near you.

Featured stations: none yet. Paid listings are labeled "Featured · paid placement".

Frequently asked

Do I need an emissions test in Madison County, Illinois?

Possibly — only part of Madison County is inside the testing area. Emissions test in the Chicago area (Cook, DuPage, Lake and parts of Kane, Kendall, McHenry and Will) and Metro East (parts of Madison, Monroe and St. Clair) for most 1996+ gasoline vehicles once they are four years old. The official test is free.

Do I need a safety inspection in Madison County?

No periodic safety inspection for personal vehicles.

All Illinois rules →