The EPA established the "Office of Greenhouse Gas Reduction Management" on July 1st, 2008. On August 18 of the same year, the organizational structure was expanded to three divisions: "Mitigation Strategy Planning," "Verification and Trading," and "Adaptation and Promotion." These divisions are responsible for developing and coordinating policies and regulations of climate change and greenhouse gas management.

Furthermore, on January 8, 2017, in order to integrate environmental sanitation, greenhouse gas reduction, and management activities, and the promotion of Low-carbon and Sustainable Homeland, the EPA merged the Office of Greenhouse Gas Reduction Management into the Department of Environmental Sanitation and Toxic Substance Management.

To enhance and integrate the capacity in responding climate change, the EPA established the "Office of Climate Change" on July 1, 2021. The office consists of four divisions: "Policy Planning Division," "Emission Management Division," "Carbon Reduction Action Division," and "Climate Change Adaptation Division" to address the Greenhouse Gas Reduction and Management Act amendment, the implementation of net-zero carbon emission pathways analyzation, carbon pricing mechanisms establishment, effectively responding to international carbon border adjustment mechanisms, low-carbon education and outreach to the public, industry emission reduction and integrating cross-department adaptation tasks. Also devote more resources to enhance the capacity for climate change response and carbon reduction initiatives.

Due to the rapid growth of tasks after the implementation of the Climate Change Response Act on February 15, 2023, and the draft organization Act of the Ministry of Environment and its third level central organ was supported by Legislative Yuan, the Preparatory Office of the Climate Change Administration, Ministry of Environment was established to supplement the urgent needs of the tasks. It consists of four divisions: “Comprehensive Planning Division”, “Emission Management Division”, “Mitigation Promotion Division”, and “Adaptation and Resilience Division,” the main tasks are drafting subsidiary laws related to climate change response, developing the carbon fee implementation, monitoring the progress of sectoral regulatory goals, assessing the progress of various ministries in achieving net-zero pathways, and preparing for the implementation of the Carbon Border Adjustment Mechanism (CBAM) in line with the European Union.

On August 22, 2023, Environmental Protection Administration will be officially upgraded to the Ministry of Environment, with the establishment of the Climate Change Administration. This will be done to address the future international trend of achieving net-zero emissions and global environmental changes, strengthen future policy formulation, promotion, and implementation in our country, and ensure the future implementation of periodic regulatory goals. In response to future international carbon border taxes and the trend of carbon reduction in the supply chain, efforts will be accelerated to promote future carbon pricing, strengthen the carbon inventory mechanism, seek carbon reduction technologies and strategies, alleviate international pressures, and assist in the transformation of industries in our country.