[Code of Federal Regulations] [Title 40, Volume 17] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR81.24] [Page 14] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 81_DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES--Table of Contents Subpart B_Designation of Air Quality Control Regions Sec. 81.24 Niagara Frontier Intrastate Air Quality Control Region. The Niagara Frontier Intrastate Air Quality Control Region (New York) consists 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 New York: Erie County, Niagara County.