[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR81.18]

[Page 12]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 81_DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES--Table of 
 
          Subpart B_Designation of Air Quality Control Regions
 
Sec.  81.18  Metropolitan St. Louis Interstate Air Quality Control Region.

    The Metropolitan St. Louis Interstate Air Quality Control Region 
(Missouri-Illinois) is revised to consist of the territorial area 
encompassed by the boundaries of the following jurisdictions or 
described area (including the territorial area of all municipalities (as 
defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f) 
geographically located within the outermost boundaries of the area so 
delimited):

    In the State of Illinois: Bond County, Clinton County, Madison 
County, Monroe County, Randolph County, St. Clair County, Washington 
County.
    In the State of Missouri: Franklin County, Jefferson County, St. 
Charles County, St. Louis City, St. Louis County.