40 CFR § 81.153 - Western Mountain Intrastate Air Quality Control Region.
---
identifier: "/us/cfr/t40/s81.153"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 81.153 - Western Mountain Intrastate Air Quality Control Region."
title_number: 40
title_name: "Protection of Environment"
section_number: "81.153"
section_name: "Western Mountain Intrastate Air Quality Control Region."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "81"
part_name: "DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401,"
regulatory_source: "36 FR 22421, Nov. 25, 1971, unless otherwise noted."
cfr_part: "81"
---
# 81.153 Western Mountain Intrastate Air Quality Control Region.
The Western Mountain 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 with the outermost boundaries of the area so delimited):
In the State of North Carolina: Buncombe County, Cherokee County, Clay County, Graham County, Haywood County, Henderson County, Jackson County, Macon County, Madison County, Swain County, Transylvania County.