The New Jersey 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)
|
|---|
| New Jersey-New York-Connecticut Interstate | I | I | I | I | I
|
| Metropolitan Philadelphia Interstate | I | I | III | I | I
|
| Northeast Pennsylvania-Upper Delaware Valley Interstate | I | II | III | III | III
|
| New Jersey Intrastate | III | IA | III | I | III |
[37 FR 10880, May 31, 1972, as amended at 39 FR 16347, May 8, 1974]