{"data":{"id":"us/14-cfr-77.27","jurisdiction":"us","citation":"14 CFR 77.27","heading":"Initiation of studies.","body":"The FAA will conduct an aeronautical study when:\n(a) Requested by the sponsor of any proposed construction or alteration for which a notice is submitted; or\n(b) The FAA determines a study is necessary.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER E—AIRSPACE","PART 77—SAFE, EFFICIENT USE, AND PRESERVATION OF THE NAVIGABLE AIRSPACE","Subpart D—Aeronautical Studies and Determinations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"64a3c0985069892858ae9a8809173a6fd94a520e057ae4d92d820c9e2d36f430","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-77.25","next":"us/14-cfr-77.29"},"notice":"GroundRules: Original legal text. Not legal advice."}