This report provides a review of policy actions of Member States in Europe and Central Asia per the mandate provided by UNEA Resolution 3/8 on Preventing and reducing air pollution to improve air quality globally. It complements the United Nations Environment Programme (UNEP) 2021 report ‘Actions on Air Quality’ by documenting more in-depth actions in key sectors as well as regional trends and priorities. This new report is based on data collected in 2020 through a detailed survey shared with member states, supplemented with relevant literature documenting key actions being undertaken by governments to improve air quality.