Planning to meet air quality standards in the San Francisco Bay Area

The planning process and implementation of control measures required to meet the Clean Air Act mandate to attain and maintain Federal Ozone Standards are outlined and discussed. Actual efforts began in the early 1960s and progressed from stationary source controls to new motor vehicle emission reductions to transportation control measures to limit emissions from vehicles in use. Air quality measurements demonstrate the success that these approaches have had in bringing days over the standard from 70 in the late 1960s to 2 or 3 in the most recent years.