Classification of regions.

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Air Programs
  6. Approval and Promulgation of Implementation Plans
  7. New Mexico
  8. Classification of regions.

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§ 52.1621 Classification of regions.

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

Expand Table
Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone
Albuquerque-Mid-Rio Grande Intrastate I III III III I
New Mexico Southern Border Intrastate IA IA III III III
El Paso-Las Cruces-Alamogordo Interstate I IA III I I
Four Corners Interstate IA IA III III III
Northeastern Plains Intrastate III III III III III
Pecos-Permian Basin Intrastate III III III III III
Southwestern Mountains-Augustine Plains Intrastate III III III III III
Upper Rio Grande Valley Intrastate III III III III III

[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]


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