Emissions Testing in the St. Louis Region
To find stations performing emissions inspections and stations employing Missouri-recognized repair technicians, click on the map.
The Gateway Vehicle Inspection Program (GVIP) improves air quality in the St. Louis region. GVIP is an emissions testing program for vehicles registered in the St. Louis area, which includes the city of St. Louis as well as Jefferson, St. Charles and St. Louis counties. If you have questions or concerns — including what to do if your vehicle fails the inspection — please contact department staff at 314-416-2115.
- Ozone information
- Malfunction indicator lamp (check engine light)
- Importance of GVIP
- History of GVIP
- Emissions test procedure
- Fact sheets and FAQs
- Annual GVIP reports
- Vehicle Emission Inspection Regulations (10 CSR 10-5.381)
- Vehicle Emission Inspection Statutes (643.300 to 643.355)
- Click here to get updates on the GVIP Program.
This webpage is for emissions testing only. For information about safety inspections, go to the Missouri State Highway Patrol Motor Vehicle Inspection webpage.