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The Green Book Nonattainment Areas
for Criteria Pollutants

What's New

Newly designated SO2 (2010 standard) nonattainment areas, effective Oct 4, 2013.

Shapefiles for NAAQS nonattainment designations prior to 2004 are now available under the "Downloads" section.

New boundaries creating separate Morongo Band of Mission Indians 1-hr Ozone and 8-hr Ozone (1997 standard) nonattainment areas are included in Green Book reports, maps, shapefiles, and data downloads.

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.

As of December 05, 2013

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 below:

Tip:    View newly published Federal Register Notices or notices that are due to become effective after this Green Book was posted.

Green Book Website Disclaimer

If you have questions for State or Local Air Pollution Agencies contact:
The National Association of Clean Air Agencies (formerly STAPPA and ALAPCO) at
http://www.4cleanair.org Exit EPA disclaimer and http://www.4cleanair.org/DirectoryAlapco.asp. Exit EPA disclaimer
State and Local Agency Web pages and other contacts are available
at the Partners-Working Together for Clean Air site.

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