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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 14
Chapter I
Part 77
Subpart D - Subpart D—Aeronautical Studies and Determinations
§ 77.25 - Applicability.
§ 77.27 - Initiation of studies.
§ 77.29 - Evaluating aeronautical effect.
§ 77.31 - Determinations.
§ 77.33 - Effective period of determinations.
§ 77.35 - Extensions, terminations, revisions and corrections.
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