The Green Book Nonattainment Areas for Criteria PollutantsAs of October 01, 2015
PM-2.5 (2012 standard) area designations, effective April 15, 2015, are included in the Green Book.
(see 80 FR 2206 and
80 FR 18535 for details)
The 8-hour Ozone (1997 standard) revocation, effective April 6, 2015, is included in the Green Book. (80 FR 12264)
The Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation is a separate 8-hour Ozone (1997 standard) area, redesignated to attainment,
effective April 3, 2015.
(see 80 FR 18120 for details)
The State Implementation Plan Status Website
<has moved here>.
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:
The 8-hour Ozone (1997 standard) was revoked on April 6, 2015, and the 1-hour Ozone (1979 standard) was revoked on June 15, 2005.
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