40 CFR 52.971 - Classification of regions.

Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024

§ 52.971 - Classification of regions.

The Louisiana plan was evaluated on the basis of the following classifications:

Air quality control region	Pollutant
Air quality control region	Particulate matter	Sulfur oxides	Nitrogen dioxide	Carbon monoxide	Ozone
Southern Louisiana-Southeast Texas Interstate	II	I	III	III	I
Shreveport-Texarkana-Tyler Interstate	II	III	III	III	III
Monroe-El Dorado Interstate	II	III	III	III	III

[37 FR 10869, May 31, 1972, as amended at 45 FR 9909, Feb. 14, 1980]

authority: 42 U.S.C. 7401

cite as: 40 CFR 52.971