1. Regulations
  2. title 40
  3. chapter I-i3
  4. part 52
  5. subpart U
  6. § 52.1021

View all text of Subpart U [§ 52.1019 - § 52.1037]

§ 52.1021 - Classification of regions.

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

Air quality control region Pollutant Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Ozone Metropolitan Portland IntrastateIIIIIIIIIIII Androscoggin Valley InterstateIAIAIIIIIIIII Down East IntrastateIAIAIIIIIIIII Aroostook IntrastateIIIIIIIIIIIIIII Northwest Maine IntrastateIIIIIIIIIIIIIII
[37 FR 10870, May 31, 1972, as amended at 45 FR 10774, Feb. 19, 1980]

AUTHORITY: 42 U.S.C. 7401

CITE AS: 40 CFR 52.1021