The Nevada plan is evaluated on the basis of the following classifications:
Air quality control region | Pollutant | ||||
Particulate matter | Sulfur oxides | Nitrogen dioxide | Carbon monoxide | Ozone | |
Las Vegas Intrastate | I | III | III | I | I |
Northwest Nevada Intrastate | I | III | III | III | III |
Nevada Intrastate | IA | III | III | III | III |
40 C.F.R. §52.1471