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South Coast Air Quality Management District

Public Services / Government Office

21865 Copley Dr,
Diamond Bar, CA 91765

(855) 396-3833

Call (855) 396-3833
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South Coast Air Quality Management District is a government office in Diamond Bar, California. SCAQMD is the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties, among the smoggiest regions of the U.S. We are committed to protecting the health of residents, while remaining sensitive to businesses.