GroundRules
40 CFR 52.1621: Classification of regions.
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER C—AIR PROGRAMS
- PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS
- Subpart GG—New Mexico
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 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
Collected 2026-08-27T02:26:04Z. Source file · JSON