§ 52.171. Classification of regions.
70 words·~1 min read·
/us/cfr/t40/s§ 52.171·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
The Arkansas plan was evaluated on the basis of the following classifications: Air quality control region Pollutant Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone Central Arkansas IntrastateIIIIIIIIIIIIII Metropolitan Fort Smith InterstateIIIIIIIIIIIIII Metropolitan Memphis InterstateIIIIIIIIIII Monroe (Louisiana)-El Dorado (Arkansas) InterstateIIIIIIIIIIIIII Northeast Arkansas IntrastateIIIIIIIIIIIIIII Northwest Arkansas IntrastateIIIIIIIIIIIIIII Shreveport-Texarkana-Tyler InterstateIIIIIIIIIIIIII [37 FR 10850, May 31, 1972, as amended at 39 FR 16346, May 8, 1974; 45 FR 6571, Jan. 29, 1980]