1. Regulations
  2. title 40
  3. chapter I-i2
  4. part 52
  5. subpart G
  6. § 52.321

View all text of Subpart G [§ 52.319 - § 52.354]

§ 52.321 - Classification of regions.

The revised Denver Emergency Episode Plan, adopted by the State of Colorado February 28, 1996, was submitted by the Governor of Colorado with a September 16, 1997 letter.

Air quality control region Pollutant Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone Pawnee IntrastateIIIIIIIIIIIII Metropolitan Denver IntrastateIIIIIIIII Comanche IntrastateIIIIIIIIIIIIIII San Isabel IntrastateIIIIIIIIIIIII San Luis IntrastateIIIIIIIIIIIIIII Four Corners InterstateIAIAIIIIIIIII Grand Mesa IntrastateIIIIIIIIIIIIIII Yampa IntrastateIIIIIIIIIIIIIII
[37 FR 10855, May 31, 1972, as amended at 39 FR 16346, May 8, 1974; 44 FR 57409, Oct. 5, 1979; 74 FR 47891, Sept. 18, 2009]

AUTHORITY: 42 U.S.C. 7401

CITE AS: 40 CFR 52.321