GroundRules
40 CFR 52.2621: 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 ZZ—Wyoming
The Wyoming plan was evaluated on the basis of the following classifications:
Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons)
Cheyenne Intrastate II III III III III
Casper Intrastate II III III III III
Wyoming Intrastate III III III III III
Collected 2026-08-27T02:26:04Z. Source file · JSON