40 CFR § 52.71 Approval and Promulgation of Implementation Plans

§ 52.71 Classification of regions.

Current through Aug 22, 2025 · Read all of Part 52

⚠ 50 pending changes to Part 52

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

Air quality control RegionPollutant
Particulate matterSulfur oxidesNitrogen dioxideCarbon monoxideOzone
Cook Inlet IntrastateIIIIIIIIIII.
Northern Alaska IntrastateIIIIIIIIIII.
South Central Alaska IntrastateIIIIIIIIIIIIIII.
Southeastern Alaska IntrastateIIIIIIIIIIIIIII.

[37 FR 10848, May 31, 1972, as amended at 48 FR 30625, July 5, 1983]

← § 52.70 Identification of plan.§ 52.72 Approval status. →