Welcome to the new State of Missouri Gateway Vehicle Inspection Program Information Portal. This website is designed to provide helpful information regarding vehicle emissions and safety inspections in Missouri.

Missouri is proud to host the first tablet-based vehicle emissions and safety inspection program, guaranteeing a more streamlined, secure and efficient vehicle inspection for all.

The Gateway Vehicle Inspection Program is a critical component in improving air quality in the St. Louis region, requiring an emissions inspection program for vehicles registered in the St. Louis ozone nonattainment area. The region includes: