Stationary Sources of Air Pollution

Clean Air Act Section 112 Presidential Exemption Information

Information about the Presidential Exemption under section 112(i)(4) of the Clean Air Act for certain National Emission Standards for Hazardous Air Pollutants.
Learn more
Stationary Sources of Air Pollution

Stationary sources of air pollution, including factories, refineries, boilers, and power plants, emit a variety of air pollutants. The Clean Air Act directs EPA to control these emissions by developing and implementing standards and guidelines.

Industry and Regulatory Action