1. Regulations
  2. title 40
  3. chapter I-i3
  4. part 52
  5. subpart BB
  6. § 52.1371

View all text of Subpart BB [§ 52.1370 - § 52.1398]

§ 52.1371 - Classification of regions.

The Montana Emergency Episode Avoidance Plan was revised with an August 2, 2004 submittal by the Governor. The August 2, 2004 Emergency Episode Avoidance Plan classified the Air Quality Control Regions (AQCR) as follows:

Air quality control regions (AQCR) Pollutant Particulate matter Sulfur oxide Nitrogen
dioxide 		Carbon
monoxide 		Ozone Billings Intrastate AQCR 140IIIIIIIIIIIIIII Great Falls Intrastate AQCR 141IIIIIIIIIIIIIII Helena Intrastate AQCR 142IIIIIIIIIIIIIII Miles City Intrastate AQCR 143IIIIIIIIIIIIIII Missoula Intrastate AQCR 144IIIIIIIIIIIIIII
[64 FR 68038, Dec. 6, 1999, as amended at 66 FR 31550, June 12, 2001; 71 FR 21, Jan. 3, 2006]

AUTHORITY: 42 U.S.C. 7401

CITE AS: 40 CFR 52.1371