[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: 40CFR81.41] [Page 17] 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. 81.41 Metropolitan Birmingham Intrastate Air Quality Control Region. The Metropolitan Birmingham Intrastate Air Quality Control Region (Alabama) has been 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 Alabama: Bibb County, Blount County, Chilton County, Fayette County, Greene County, Hale County, Jefferson County, Lamar County, Pickens County, St. Clair County, Shelby County, Sumter County, Tuscaloosa County, Walker County.