Part 81—Designation of Areas for Air Quality Planning Purposes

1. CFR
2. ›
3. Title 40
4. ›
5. Chapter I
6. ›
7. Part 81

Contents

• Appendix A to Part 81
  Appendix A to Part 81—Air Quality Control Regions (AQCR's)
• A
  Subpart A—Meaning of Terms
• B
  Subpart B—Designation of Air Quality Control Regions
• C
  Subpart C—Section 107 Attainment Status Designations
• D
  Subpart D—Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value
• E
  Subpart E—Identification of Interstate Transport Regions