§52.04. Classification of regions.
40 C.F.R. § 52.04
Each subpart sets forth the priority classification, by pollutant, for each region in the State. Each plan for each region was evaluated according to the requirements of part 51 of this chapter applicable to regions of that priority.
Notes, amendments, and revision history
Source
Source: 37 FR 10846, May 31, 1972, unless otherwise noted.
Authority
Authority: 42 U.S.C. 7401 et seq.
Amendments
[40 FR 5521, Feb. 6, 1975]