This project assisted the EPA to operate and maintain the in-use vehicles noise reporting website system, also updated and enhanced the function of system in accordance with the suggestion of citizens and EPD. The exclusive section for police report was online this year and over 1,000 vehicles had been reporting. To raise the public participation willing, the prize-drawing activity for the people who reporting noise car kept holding and the reporting cases increased greatly. For the past four years, nearly 30,000 report cases were received. And the first three counties were Taipei City, New Taipei City, and Taichung County. Almost 90% of the cases were motorcycles. One training course for the EPD officials was held and the noise measurement procedure was demonstrated. During the enforcing in-use vehicle noise time, this study helped the EPA to inspect the processing of EPD in situ and proposed improvement suggestion. This project assisted the EPD to carry out five times of enforcing sites and 118 vehicles were measured. To propose the feasibility of preventing improper refit, 26 motorcycle repair stores were surveyed and some regulations about environmental and vehicle management were studied. To support the policy of the permission control measures of prone to noise emission facility advanced by EPA, this project proceeds to some assistant measures continuously. In this year, this project revised the program system for applying and examining the “operation permission for prone to noise emission facility”. In the revised version, multiple net-work operation platform and file management system were considered, the types and examples for application and examination were prepared. To extend the program to assist the 4 environment measurement companies for establishment of capability of sound power measurement of construction facilities, two companies have been qualified by Environment Analysis Laboratory of EPA.