1. Regulations
  2. title 40
  3. chapter I-i3
  4. part 52
  5. subpart GG
  6. § 52.1621

View all text of Subpart GG [§ 52.1620 - § 52.1640]

§ 52.1621 - Classification of regions.

The New Mexico plan was evaluated on the basis of the following classifications:

Air quality control region Pollutant Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone Albuquerque-Mid-Rio Grande IntrastateIIIIIIIIIII New Mexico Southern Border IntrastateIAIAIIIIIIIII El Paso-Las Cruces-Alamogordo InterstateIIAIIIII Four Corners InterstateIAIAIIIIIIIII Northeastern Plains IntrastateIIIIIIIIIIIIIII Pecos-Permian Basin IntrastateIIIIIIIIIIIIIII Southwestern Mountains-Augustine Plains IntrastateIIIIIIIIIIIIIII Upper Rio Grande Valley IntrastateIIIIIIIIIIIIIII
[37 FR 1081, May 31, 1972, as amended at 39 FR 16347, May 8, 1974; 42 FR 20131, Apr. 18, 1977; 45 FR 24468, Apr. 10, 1980; 45 FR 67347, Oct. 10, 1980; 52 FR 5965, Feb. 27, 1987]

AUTHORITY: 42 U.S.C. 7401

CITE AS: 40 CFR 52.1621