{"data":{"id":"us/40-cfr-81.15","jurisdiction":"us","citation":"40 CFR 81.15","heading":"Metropolitan Philadelphia Interstate Air Quality Control Region (Pennsylvania-New Jersey-Delaware).","body":"The Metropolitan Philadelphia Interstate Air Quality Control Region (Pennsylvania-New Jersey-Delaware) consists of the territorial area encompassed by the boundaries of the following jurisdictions (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):\nIn the State of Pennsylvania: Bucks County, Chester County, Delaware County, Montgomery County, Philadelphia County.\nIn the State of New Jersey: Burlington County, Camden County, Gloucester County, Mercer County, Salem County.\nIn the State of Delaware: New Castle County.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES","Subpart B—Designation of Air Quality Control Regions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"610928aa586e5738eeeb838ee189f487d9495117be1fd593c2148d18e29e7409","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.14","next":"us/40-cfr-81.16"},"notice":"GroundRules: Original legal text. Not legal advice."}