U.S. CHAMBER OF COMMERCE

Letters & Testimony

Letters & Testimony

Letters

Congress enacted the Clean Air Act (CAA) in 19632 and amended it in 1990 to curb a number of major threats to human health and the environment. Section 112 of the CAA requires EPA to list categories and subcategories of major and area sources of Hazardous Air Pollutants (HAPs), and to establish NESHAPs for listed source categories and subcategories.