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 H—Connecticut (§52.369 to §52.387) > 52.371—Classification of regions.

52.371—Classification of regions.

The Connecticut plan was evaluated on the basis of the following classifications:
Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone
New Jersey-New York-Connecticut Interstate I I I I I
Hartford-New Haven-Springfield Interstate I I III I I
Northwestern Intrastate III III III III III
Eastern Intrastate II III III III III

Code of Federal Regulations

[37 FR 10855, May 31, 1972, as amended at 39 FR 16346, May 8, 1974; 45 FR 84787, Dec. 23, 1980]