Group 1 - The year marks the conclusion of the "14th Five-Year Plan" and the planning phase for the "15th Five-Year Plan," with a focus on improving air quality through systematic measures [1] - The continuous improvement of the environmental standards system since 2015 has been a key driver in enhancing air quality, necessitating strong measures for deep emission reductions to achieve the goal of a beautiful China [2] - Current emission reduction measures are categorized into regular and emergency reductions, with many regions relying on collaborative reduction and enhanced pollution source inspections, which have shown limited effectiveness due to the small scale of pollution sources involved [2][3] Group 2 - Local governments are empowered to establish stricter environmental standards than national ones, allowing for tailored approaches to emission reductions based on regional conditions [3] - A well-established environmental standards system can maintain a healthy market order by setting a unified environmental baseline for enterprises, preventing unfair competition and promoting green development [3] Group 3 - The formulation of standards must be scientific and reasonable, ensuring both feasibility and alignment with local realities while referencing advanced practices from other regions [4] - Each standard should focus on addressing key issues, such as discrepancies in emission levels compared to advanced provinces and gaps in monitoring and control processes [4]