In 1989, the South Coast AQMD hosted the first annual Clean Air Awards and recognized outstanding businesses, organizations, municipalities, and individuals who have championed the southland's fight for clean air. Since then, nearly 300 Clean Air Heroes have been awarded for their efforts to clean the air. Each year, awards are presented in five categories which include Air Pollution Technology, Innovative Transportation Projects, Model Community Achievements, Promotion of Good Environmental Stewardship, and Public Education on Air Quality Issues. In addition to the five awards presented each year, the South Coast AQMD honors two faithful clean air advocates by presenting the Robert M. Zweig, M.D. Memorial Lifetime Achievement Award and S. Roy Wilson Memorial Award for Leadership in Government.