The Eastern Piedmont Intrastate Air Quality Control Region (North Carolina) 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 North Carolina: Chatham County, Durham County, Edgecombe County, Franklin County, Granville County, Halifax County, Johnston County, Lee County, Nash County, Northampton County, Orange County, Person County, Vance County, Wake County, Warren County, Wilson County.