40 CFR Part 81 - DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES
- Subpart A—Meaning of Terms (§ 81.1)
- Subpart B—Designation of Air Quality Control Regions (§§ 81.11 - 81.276)
- Subpart C—Section 107 Attainment Status Designations (§§ 81.300 - 81.356)
- Subpart D—Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value (§§ 81.400 - 81.437)
- Subpart E—Identification of Interstate Transport Regions (§§ 81.455 - 81.457)
- Appendix A to Part 81—Air Quality Control Regions (AQCR's)
Authority:
42 U.S.C. 7401, et seq.
Source:
36 FR 22421, Nov. 25, 1971, unless otherwise noted.