CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER E—AIRSPACE (parts 71 to 77) > PART 77—OBJECTS AFFECTING NAVIGABLE AIRSPACE (Eff. until 1-18-11) > SUBPART B—Notice of Construction or Alteration (§77.11 to §77.9)