Since the formulation of the Kaohsiung-Pingtung Area Air TQC Plans on 30 June 2015, the EPA has expected that existing stationary sources of pollution in this region would cut down pollutant emissions accordingly. By the end of the first phase, it is estimated that the goal of a 5% reduction of pollutant emissions can be reached. However, the Plan has also faced doubts from some that the reduction goals set would not generate meaningful results, as the approved pollution emissions for existing sources are too high.

The EPA announced that the revised TQC Plan will be launched on 1 July 2018. The stationary sources among 607 private and public premises under control in the first phase will be required to comply with the baselines with renewed approved emissions and designated practical reduction goals and procedures. The baselines are set based on the best available control technology (BACT). Compared with the actual emissions in 2016, actual emissions of each air pollutant under control are expected to further be reduced by 9~21%, creating immediate effects in reducing emissions from private and public premises. Basic structures and regulations, such as procedures for approving emissions within the TQC areas and operation processes for approving, retaining, and trading reduction credits, have also been revised and clarified.