§ 52.2021. Classification of regions.
69 words·~1 min read·
/us/cfr/t40/s§ 52.2021·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
The Pennsylvania plan was evaluated on the basis of the following classifications: Air quality control region Pollutant Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone (hydrocarbons) Metropolitan Philadelphia InterstateIIIIIII Northeast Pennsylvania-Upper Delaware Valley InterstateIIIIIIIIIIII South Central Pennsylvania IntrastateIIIIIIIIIIII Central Pennsylvania IntrastateIIIIIIIIIIIII Southwest Pennsylvania IntrastateIIIIIII Northwest Pennsylvania-Youngstown InterstateIIIIIIIIIIII [37 FR 10889, May 31, 1972, as amended at 39 FR 16347, May 8, 1974; 45 FR 33627, May 20, 1980]