Part 77 — Safe, Efficient Use, and Preservation of the Navigable Airspace
- Subpt. A General §§77.1 to 77.3
- Subpt. B Notice Requirements §§77.5 to 77.11
- Subpt. C Standards for Determining Obstructions to Air Navigation or Navigational Aids or Facilities §§77.13 to 77.23
- Subpt. D Aeronautical Studies and Determinations §§77.25 to 77.35
- Subpt. E Petitions for Discretionary Review §§77.37 to 77.41