This report presents results of an analysis for carbon monoxide and photochemical oxidants in the Phoenix Air Quality Maintenance Area. Eleven strategies were proposed for evaluation as to their effectiveness in attaining and maintaining the 8-hour CO and 1-hour oxidant standard. Three basic control strategies - traffic systems improvements, including highway construction, improved mass transit, including transit incentives, and regional development planning - are part of the ongoing planning process and, therefore, were assumed throughout the analysis. Two other control strategies - inspection/maintenance and carpooling - are already in operation but were evaluated in the same manner as the remaining six strategies. The six other strategies considered for inclusion in the Phoenix Air Quality Maintenance Plan were: periodic maintenance, vapor recovery, dealer emissions and driving schedule shifts. In 1990 and 1995, the three basic control strategies alone would be sufficient to attain and maintain the standard because of decreasing emissions due to stricter controls on automobile emissions. However, the reduction would not be adequate to maintain the standard in the year 2000 and there would again be exceedances.