StacksVerified U.S. regulatory reference

40 CFR §52.04

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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.