The Calaveras County Air Pollution Control District (District) is part of the Mountain Counties Air Basin. The District is recognized as a Special District and is governed by the Calaveras County Air Pollution Control Board. The primary goal of the District is to protect public health by managing the county's air quality through educating the public and enforcement of District rules and California Air Resources Control Board - Air Toxic Control Measures that result in the reduction of air pollutants and contaminants. While there are minimal sources that impact air quality within the District, Calaveras County does experience air quality impacts from the Central Valley through transport pollutants. The most visible impacts to air quality within the District is a result of open burning of vegetation as conducted by individual property owners, industry, and state agencies for purposes of reducing wild land fire hazards.
The District permits and inspects stationary sources of air pollution. These sources include, but are not limited to; gasoline dispensing facilities (gas stations), rock quarries, paint spray booths and diesel generators greater than 50 break horsepower (bhp). The district also disseminates burn day information given by the California Air Resources Board, and issues burn permits for parcels greater than 5 acres.