This seminar will examine air pollution law and policy under the Clean Air Act. Focusing on leading cases, it will address: EPA’s health-based National Ambient Air Quality Standards and state plans to meet those standards; EPA’s regulation of hazardous air pollutants; the federal emissions trading program to reduce acid rain; Clean Air Act permitting programs; the regulation of air pollution from cars, trucks, and other mobile sources; efforts to reduce carbon dioxide and other greenhouse gas emissions from stationary and mobile sources; administrative and judicial enforcement mechanisms, including EPA’s enforcement initiative targeting power plant emissions and citizen suits; and stratospheric ozone protection. This seminar will highlight differences between regulatory tools (e.g., health- and technology-based standards, market mechanisms, and information disclosure), issues of federalism, regional collaboration to address air pollution, the administrative process, and judicial review of agency decisions. It will cover a number of current developments. Each student will write a paper on a Clean Air Act topic. Credit/no credit option is available.