The scope of this project was to evaluate the effectiveness of local Environmental Protection Bureaus (EPBs) in air pollution control, to propose control strategies, and to improve the utilization of the air pollution fee in local SIP projects. After review, the between-project time for conducting common projects was less than 3 months for most counties and cities, which showed positively in improving efficiency and project continuation. The cost of emission reduction is 34 NT/kg from motorcycle’s regular inspections; the cost for roadside inspection is 2,721 NT/kg of emission. After review of other EPA’s projects, it showed that the compliance of the air regulations, motorcycle inspection and enforcement, ratio of passing in sampled diesels, and the accurate permit approval ratio, were all improved in this year. However, the compliance at the construction sites and completion rates for reporting emissions were lower than those of 2009’s and need further improvement. In order to audit the performance of local EPB’s State Implementation Plan, 1111 petition cases from 21 counties or cities were screened and the inspection results were analyzed. 178 roads were inspected for their cleanness conditions. These roads were classified as clean or moderate, and the result is better than that of year 2009. Dust loading of 120 county roads were sampled and analyzed. Most of the roads can be maintained in a clean or acceptable level. The average street dust load is 3.97g/m2 which are less than that of 2009. 20,139 copies of “Questionnaire for the satisfaction of air quality improvement” were surveyed. The ratio of satisfaction increased from 53.2% for year 2009 to 65.0% for year 2010. The auditing conferences and demonstration party/meeting were held for comments exchange between local EPBs and EPA, and to receive recommendations from air pollution control consultant committee. “Auditing Rules for Effects of Local EPBs’ State Implementation Plan in 2011” is revised by rating 5 upgraded municipalities, the main island county/city, and the island county/city separately. Considering the combined counties and cities have more resources, therefore, the higher proportion of air pollution control fees should be made available to enhance the control effectiveness. In order to assist the maintenance of “SIP Audit Information System”, a subsystem of EPA "Integrated Management Information System for Stationary Source Control", comments and suggestions from the Auditing Committees and local EPBs about the operation and data transfer were discussed, summarized and proposed through this project.