SECTION	Title	Time
§ 77.1	§ 77.1 Purpose.	May 8, 2026
§ 77.3	§ 77.3 Definitions.	May 8, 2026
§ 77.5	§ 77.5 Applicability.	May 8, 2026
§ 77.7	§ 77.7 Form and time of notice.	May 8, 2026
§ 77.9	§ 77.9 Construction or alteration requiring notice.	May 8, 2026
§ 77.11	§ 77.11 Supplemental notice requirements.	May 8, 2026
§ 77.13	§ 77.13 Applicability.	May 8, 2026
§ 77.15	§ 77.15 Scope.	May 8, 2026
§ 77.17	§ 77.17 Obstruction standards.	May 8, 2026
§ 77.19	§ 77.19 Civil airport imaginary surfaces.	May 8, 2026
§ 77.21	§ 77.21 Department of Defense (DOD) airport imaginary surfaces.	May 8, 2026
§ 77.23	§ 77.23 Heliport imaginary surfaces.	May 8, 2026
§ 77.25	§ 77.25 Applicability.	May 8, 2026
§ 77.27	§ 77.27 Initiation of studies.	May 8, 2026
§ 77.29	§ 77.29 Evaluating aeronautical effect.	May 8, 2026