April 2, 2009IN THE MATTER OF:NITROGEN OXIDES EMISSIONS FROMVARIOUS SOURCE CATEGORIES:AMENDMENTS TO 35 ILL.
Id.
The Agency states that Section 110 of the Clean Air Act (CAA) requires states to submit
to the United States Environmental Protection Agency (USEPA) for its approval stateimplementation plans (SIP) “that provide for the attainment and maintenance of standardsestablished by USEPA through control programs directed to sources of the pollutants involved.”Mot.
at 2 (¶3).
USEPA has designated two areas of Illinois as nonattainment for both
ozone1 and PM2.52The Agency states that, by letter dated March 12, 2009, USEPA reiterated that ...
Allowed
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