The South Coast Air Quality Management District (SCAQMD) is a regional agency responsible for regulating air quality in Southern California, specifically in the areas of Los Angeles, Orange, Riverside, and San Bernardino counties. Established in 1977, its primary goal is to improve air quality and protect public health by enforcing air pollution control measures and promoting clean air initiatives. SCAQMD develops and implements plans to reduce emissions from various sources, including vehicles, industrial facilities, and commercial operations. The agency also monitors air quality, conducts research, and provides public education on the importance of clean air and environmental sustainability.