§ 52.2321. Classification of regions.
51 words·~1 min read·
/us/cfr/t40/s§ 52.2321·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
The Utah 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) Wasatch Front IntrastateIIIII Four Corners InterstateIAIAIIIIIIIII Utah IntrastateIIIIIIIIIIIIIII [37 FR 10898, May 31, 1972, as amended at 39 FR 16347, May 8, 1974]