40 CFR 52.1671: Classification of regions.

The New York plans were evaluated on the basis of the following classifications:

Air quality control region Pollutant

Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons)

Niagara Frontier Intrastate I I III III I

Champlain Valley Interstate II II III III III

Central New York Intrastate I II III I I

Genesee-Finger Lakes Intrastate II II III III I

Hudson Valley Intrastate I II III III III

Southern Tier East Intrastate II II III III III

Southern Tier West Intrastate II II III III III

New Jersey-New York-Connecticut Interstate I I I I I