40 CFR § 81.240 - Northeastern Plains Intrastate Air Quality Control Region.
---
identifier: "/us/cfr/t40/s81.240"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 81.240 - Northeastern Plains Intrastate Air Quality Control Region."
title_number: 40
title_name: "Protection of Environment"
section_number: "81.240"
section_name: "Northeastern Plains 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"
---
# 81.240 Northeastern Plains Intrastate Air Quality Control Region.
The Northeastern Plains Intrastate Air Quality Control Region (New Mexico) 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 Mexico: Colfax County, Guadalupe County, Harding County, Mora County, San Miguel County, Torrance County, Union County.