Legal analysis: The three-year action plan for defending the blue sky is a pollution prevention action plan deployed by the China Municipal Government, aiming at continuously improving air quality and retaining more blue sky for the people. On June 27th, 218, the State Council released the Three-year Action Plan to Win the Blue Sky Defence War. On February 25, 221, the Ministry of Ecology and Environment held a regular press release, announcing the successful conclusion of the Three-year Action Plan to Win the Blue Sky Defence War.
Legal basis: Winning the Blue Sky Defence War in the Three-year Action Plan is a major decision made by the 19th National Congress of the Communist Party of China, which is related to meeting the people's growing needs for a better life, building a well-off society in an all-round way, high-quality economic development and the construction of beautiful China. This action plan is formulated to speed up the improvement of ambient air quality and win the blue sky defense war.