§ 52.1821. Classification of regions.
41 words·~1 min read·
/us/cfr/t40/s§ 52.1821·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
The North Dakota 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) Metropolitan Fargo-Moorhead InterstateIIIIIIIIIIIIII North Dakota IntrastateIIIIIIIIIIIIII [37 FR 10885, May 31, 1972]