Lessons from the Clean Air Act 
                Timeline of Major Legislation, Agency Actions and Judicial Decisions
Timeline of major legislation, agency actions and judicial decisions affecting the regulation of NAAQS, regulation of stationary sources, relationship between federal and California emissions standards, regulation of fuels and use of market mechanisms. Adapted from Lessons from the Clean Air Act: Building Durability and Adaptability into U.S. Climate and Energy Policy, Cambridge University Press, 2019.
1945–1970
          
1970–1995
          
1995–2017