SECTION	Title	Time
§ 121.125	§ 121.125 Flight following system.	July 21, 2025
§ 121.127	§ 121.127 Flight following system; requirements.	July 21, 2025
§ 121.131	§ 121.131 Applicability.	July 21, 2025
§ 121.133	§ 121.133 Preparation.	July 21, 2025
§ 121.135	§ 121.135 Manual contents.	July 21, 2025
§ 121.137	§ 121.137 Distribution and availability.	July 21, 2025
§ 121.139	§ 121.139 Manual accessibility: Supplemental operations.	July 21, 2025
§ 121.141	§ 121.141 Airplane flight manual.	July 21, 2025
§ 121.151	§ 121.151 Applicability.	July 21, 2025
§ 121.153	§ 121.153 Aircraft requirements: General.	July 21, 2025
§ 121.155	§ 121.155 [Reserved]	July 21, 2025
§ 121.157	§ 121.157 Aircraft certification and equipment requirements.	July 21, 2025
§ 121.159	§ 121.159 Single-engine airplanes prohibited.	July 21, 2025
§ 121.161	§ 121.161 Airplane limitations: Type of route.	July 21, 2025
§ 121.162	§ 121.162 ETOPS Type Design Approval Basis.	July 21, 2025