CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS > SUBPART UU—Vermont (§52.2370 to §52.2386) > 52.2371—Classification of regions.

52.2371—Classification of regions.

The Vermont plan was evaluated on the basis of the following classifications:
Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone
Champlain Valley Interstate II II III III III
Vermont Intrastate II II III III III

Code of Federal Regulations

[37 FR 10898, May 31, 1972, as amended at 45 FR 10782, Feb. 19, 1980]