40 C.F.R. § 52.521
Classification of regions.
Cite as 40 C.F.R. § 52.521 (2026)
The Florida 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) Mobile (Alabama)-Pensacola-Panama City (Florida)-Southern Mississippi Interstate I I III III I Jacksonville (Florida)-Brunswick (Georgia) Interstate I II III III I West Central Florida Intrastate I I III III III Central Florida Intrastate II III III III III Southwest Florida Intrastate III III III III III Southeast Florida Intrastate II III III III III [37 FR 10858, May 31, 1972, as amended 39 FR 16346, May 8, 1974]