40 C.F.R. § 52.1421

Current through September 30, 2024

Section 52.1421 - Classification of regions

The Nebraska 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 Omaha-Council Bluffs Interstate	I	II	III	III	III
Lincoln-Beatrice-Fairbury Intrastate	II	III	III	III	III
Metropolitan Sioux City Interstate	III	III	III	III	III
Nebraska Intrastate	III	III	III	III	III

40 C.F.R. §52.1421

37 FR 10877, May 31, 1972, as amended at 39 FR 16347, May 8, 1974