The Louisiana plan was evaluated on the basis of the following classifications: ----------------------------------------------------------------------------------------------------------------
Pollutant
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Air quality control region Particulate Sulfur Nitrogen Carbon
matter oxides dioxide monoxide Ozone----------------------------------------------------------------------------------------------------------------Southern Louisiana-Southeast Texas Interstate............. II I III III IShreveport-Texarkana-Tyler Interstate..................... II III III III IIIMonroe-El Dorado Interstate............................... II III III III III---------------------------------------------------------------------------------------------------------------- [37 FR 10869, May 31, 1972, as amended at 45 FR 9909, Feb. 14, 1980] Sec. Sec. 52.972-52.974 [Reserved]