The Green Book Nonattainment Areas As of July 02, 2014
for Criteria Pollutants
Subpart 4 classification changes are included for 1997 PM-2.5 and 2006 PM-2.5 areas, effective July 2, 2014.
(see 79 FR 31566 for details)
The Green Book home page and sidebar have been redesigned.
The "Downloads" link on the sidebar provides access to data exports, GIS shapefiles, and sets of Green Book maps.
The State Implementation Plan Status Website is now available.
Questions concerning the status of nonattainment areas, their classification and EPA policy should be directed to the appropriate Regional Office. EPA Headquarters should be contacted only when the Regional Office is unable to answer a question.
Areas of the country where air pollution levels persistently exceed the national ambient air quality standards may be designated "nonattainment." To view a list of areas designated nonattainment, select one of the pollutants/standards below:
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