Governing Law and Regulations
Missouri Department of Natural Resources (DNR) Division of Environmental Quality Air Pollution Control Program
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. There are many mobile source regulatory requirements implemented nationally by the U.S. Environmental Protection Agency (EPA) that impact mobile sources in Missouri. In addition, the state has established additional programs to implement optional federal programs in order to make progress toward attainment of all the national ambient air quality standards.
• Administration and enforcement. The Air Pollution Control Program of DNR's Division of Environmental Quality administers and enforces the mobile source programs.
VEHICLE INSPECTION AND MAINTENANCE (I/M)
10 CSR 10-5.381
Missouri's I/M requirements apply to specific geographic areas.
Inspection Area and Applicability
All vehicles registered or primarily operated on public roadways in the following geographical areas must comply with motor vehicle inspection requirements, known as the Gateway Vehicle Inspection Program (GVIP):
- City of St. Louis
- St. Louis County
- St. Charles County
- Jefferson County
- Franklin County
A vehicle is primarily operated in the area if at least 51 percent of the vehicle's annual miles are in the city of St. Louis and/or the ...