Information Center

The new vehicle emissions testing program began Oct. 1, 2007. The state licenses auto repair shops to conduct safety and emissions tests for the Gateway Vehicle Inspection Program.

Vehicles 1995 and older are exempt from the emissions testing process, however, a safety inspection is still required. All 1996 and newer gas-powered vehicles and 1997 and newer diesel-powered vehicles 8,500 pounds or less gross vehicle weight rating registered in the St. Louis nonattainment area are subject to an emissions test and safety inspection. The nonattainment area includes registered vehicles in St. Louis City, Franklin, Jefferson, St. Louis and St. Charles counties.

Fact Sheets and Frequently Asked Questions

For more information on the Gateway Vehicle Inspection Program see Fact Sheets and FAQs.

Information for Participating in GVIP

For more information on becoming a GVIP Station.

Information on Obtaining Waivers or Exemptions

For more information on waiver applications and exemption requests.

Media and Public Information Contacts

The Missouri Department of Natural Resources is available to help the public and members of the media with questions related to the Gateway Vehicle Inspection Program. If you are unable to find the information you need on this website, contact one of the department's staff below.

News Releases

News releases from the Gateway Vehicle Inspection Program and news releases distributed by the Missouri Department of Natural Resources.

Public Service Announcements

The Gateway Vehicle Inspection Program has several print and radio Public Service Announcements that may be used to distribute information on emissions testing in the St. Louis nonattainment area.

Emissions Inspection Programs - Other States

EPA Inspection & Maintenance - State Status