According to Article 6, Paragraphs 2 and 3 of the Air Pollution Control Act, those newly added or modified stationary pollution sources within Class 2 and Class 3 of air pollution prevention regions in which air pollutant emissions quantities reach a certain regulatory scale is required to perform air quality simulation by suitable air quality model and verify the influence will not exceed allowable increment limits of air pollutant concentrations. As Article 8, Paragraph 2 stands, within a total quantity control district that meets air quality standards, those newly installed or modified stationary pollution sources for which pollutant emissions quantities reach a certain scale is required to perform air quality simulation by suitable air quality model and verify the influence will not exceed allowable increment limits within the district. Development and application of air quality model needs to integrate the interdisciplinary science, knowledge and information, and to support each other for making the aim. When air quality models involve the related terms and application of Air Pollution Control Act, like Environment Impact Assessment and Allow able Pollutant Increase Limits, choosing the adapted air quality model and standardizing the operating process needs a specific normalization to gain the public consenting. The scientific and technical knowledge and information that the development and application of air quality models need to accomplish their missions spread in all kinds of academic and advisory organizations, which result into the decentralization of resources, duplicate constructions, various qualities, and barriers of information. Taiwan Air Quality Modeling Center (TAQMC) actually is a policy and technique supporting organization with a combination of experts and data resources in the industry, the government and the academics. Taiwan EPA enforced the allowable increase limits of air pollution in the air pollution control act, and the standard requests of air quality modeling in the procedure of environmental impact assessment. Therefore, Taiwan EPA supported to establish “air quality model supporting center” since 2002. In fact, it belongs to the role of technical supporting for policy determination in order to laterally integrate the knowledge of production and official related to talent and data resource. The tasks accomplished and relative productions are shown as follows according to the sequence of objectives for this year in the project plan.

allowable increment limit, model simulation standard, trategy assessment, long-range transport