GroundRules
40 CFR 52.1421: 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 CC—Nebraska
The Nebraska 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)
Metropolitan Omaha-Council Bluffs Interstate I II III III III
Lincoln-Beatrice-Fairbury Intrastate II III III III III
Metropolitan Sioux City Interstate III III III III III
Nebraska Intrastate III III III III III
Collected 2026-08-27T02:26:04Z. Source file · JSON