40 CFR § 52.371
Classification of regions
June 9, 2020
The Connecticut plan was evaluated on the basis of the following classifications:
Open Table
| 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 |
[37 FR 10855, May 31, 1972, as amended at 39 FR 16346, May 8, 1974; 45 FR 84787, Dec. 23, 1980]
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