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Oregon Department of Environmental Quality (DEQ) Air Quality Division
Oregon Department of Transportation (ODOT) DMV
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 Oregon. In addition, the state has established additional programs to implement optional federal programs and other requirements to control mobile source emissions and make progress toward attainment of all the national ambient air quality standards.
• Administration and enforcement. DEQ's Air Quality Division administers and enforces the majority of the mobile source programs in Oregon. The vehicle I/M program is administered and enforced by ...