Regulation & law · 13/11/2009

EPA Establishes Air Quality Designations for US Areas in Compliance with 2006 PM 2.5 NAAQS

The Environmental Protection Agency (EPA) has designated air quality areas in the United States, including Indian Country, as meeting or violating the 2006 24-hour fine particle (PM 2.5) National Ambient Air Quality Standards (NAAQS), in an effort to protect public health and welfare.