South Coast Air Quality Management District (South Coast AQMD) is one of the largest and most technologically sophisticated environmental regulatory agencies in the Nation. We serve a four-county region that includes all of Orange County, and parts of Los Angeles, Riverside and San Bernardino counties, home to more than 17 million people. South Coast AQMD's headquarters is located in Diamond Bar, 30 miles east of downtown Los Angeles, at the junction of the 57 and 60 freeways. With a highly diverse "Clean Air Team" of over 750 employees, an annual budget of $179.9 million, our mission is to ensure clean air and a healthy environment. South Coast AQMD is an organization you can be proud to work for -- we make a difference in the quality of life in Southern California!