35 Ill. Adm. Code 203.1280
Nonattainment New Source Review (NA NSR) Permit
Section 203.1280 Nonattainment
New Source Review (NA NSR) Permit
"Nonattainment New Source Review permit"
or
"NA NSR permit"
means a permit or a portion of a permit for a new
major source or major modification that is issued by the Agency under the
construction permit program
required by Section 9.1(c) of the Act
that
has been approved by
USEPA
and incorporated into the Illinois
SIP
to implement the requirements of section 173 of the
CAA
and 40 CFR
51.165
. [415 ILCS 5/3.298]