Agencies
Services
Periodic Vehicle Inspection/Diesel Emission
IDOT is responsible for regulating prescribed inspection criteria of vehicles that are conducted at approximately 200 Official Testing Stations located throughout Illinois.
2nd division vehicles operated on Illinois highways are required by law to be inspected in accordance with established inspection criteria on a periodic basis.
The following vehicles are subject to the Illinois Diesel Emission Inspection Program:
Intrastate diesel-powered vehicles that are:
- registered for a gross weight of more than 16,000 pounds, and
- Registered within the affected area, and
- Two year or older model year
The affected areas are the counties of: Cook, DuPage, Kane, Lake, Madison, McHenry, Monroe, Will, St. Clair, the townships of Aux Sable and Goose Lake in Grundy County, and Oswego in Kendall County.
Inspection Locations
Scheduled Inspections are performed by certified safety testers who are employed at Illinois Official Testing Stations.
Inspection Records
To obtain information about the vehicle inspection records, please contact our office at 217-785-1181.
Contact Us
Illinois Department of Transportation
Bureau of Investigations & Compliance
3215 Executive Drive
Springfield, IL 62703
Phone: (217) 785-1181
