Air quality permits, like building and other business permits, are a part of doing business in California. Yolo-Solano AQMD issues air quality permits to regulated businesses in Yolo County and northeast Solano County.
Permits are required by state and federal law for any operation or equipment that has the potential to emit air contaminants. Permits are required of both small and large businesses.
Permit types
A stationary source permit is required for any facility, process, machine, or equipment that has the potential to directly emit air pollution. This includes commercial diesel engines, boilers, automotive paint operations, and printing presses.
Title V permits are required for large industrial facilities that trigger certain federal requirements.