Governing Law and Regulations
Utah Department of Environmental Quality (DEQ) Division of Air Quality
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Many mobile source regulatory programs are implemented at the federal level and are having a positive effect on air quality in Utah. In addition, the state has implemented vehicle inspection and maintenance (I/M) program, employer trip reduction (ETR), and oxygenated gasoline programs in selected counties where such programs are necessary to attain and maintain the National Ambient Air Quality Standards.
• Administration and enforcement. DEQ's Division of Air Quality administers and enforces the mobile source programs in Utah.
VEHICLE INSPECTION AND MAINTENANCE (I/M)
R307-110-31 to 307-110-36
Emissions controls required by the state and federal government are designed to reduce emissions from motor vehicles. However, the effectiveness of the controls is substantially reduced through deterioration, maladjustment, and tampering. Therefore, the motor vehicle emissions inspection program serves to identify high polluting ...