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- 14 CFR 25.1025 · Oil valves.
- 14 CFR 25.1027 · Propeller feathering system.
- 14 CFR 25.1041 · General.
- 14 CFR 25.1043 · Cooling tests.
- 14 CFR 25.1045 · Cooling test procedures.
- 14 CFR 25.1091 · Air induction.
- 14 CFR 25.1093 · Induction system icing protection.
- 14 CFR 25.1101 · Carburetor air preheater design.
- 14 CFR 25.1103 · Induction system ducts and air duct systems.
- 14 CFR 25.1105 · Induction system screens.
- 14 CFR 25.1107 · Inter-coolers and after-coolers.
- 14 CFR 25.1121 · General.
- 14 CFR 25.1123 · Exhaust piping.
- 14 CFR 25.1125 · Exhaust heat exchangers.
- 14 CFR 25.1127 · Exhaust driven turbo-superchargers.
- 14 CFR 25.1141 · Powerplant controls: general.
- 14 CFR 25.1142 · Auxiliary power unit controls.
- 14 CFR 25.1143 · Engine controls.
- 14 CFR 25.1145 · Ignition switches.
- 14 CFR 25.1147 · Mixture controls.
- 14 CFR 25.1149 · Propeller speed and pitch controls.
- 14 CFR 25.1153 · Propeller feathering controls.
- 14 CFR 25.1155 · Reverse thrust and propeller pitch settings below the flight regime.
- 14 CFR 25.1157 · Carburetor air temperature controls.
- 14 CFR 25.1159 · Supercharger controls.
- 14 CFR 25.1161 · Fuel jettisoning system controls.
- 14 CFR 25.1163 · Powerplant accessories.
- 14 CFR 25.1165 · Engine ignition systems.
- 14 CFR 25.1167 · Accessory gearboxes.
- 14 CFR 25.1181 · Designated fire zones; regions included.
- 14 CFR 25.1182 · Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid lines.
- 14 CFR 25.1183 · Flammable fluid-carrying components.
- 14 CFR 25.1185 · Flammable fluids.
- 14 CFR 25.1187 · Drainage and ventilation of fire zones.
- 14 CFR 25.1189 · Shutoff means.
- 14 CFR 25.1191 · Firewalls.
- 14 CFR 25.1192 · Engine accessory section diaphragm.
- 14 CFR 25.1193 · Cowling and nacelle skin.
- 14 CFR 25.1195 · Fire extinguishing systems.
- 14 CFR 25.1197 · Fire extinguishing agents.
- 14 CFR 25.1199 · Extinguishing agent containers.
- 14 CFR 25.1201 · Fire extinguishing system materials.
- 14 CFR 25.1203 · Fire detector system.
- 14 CFR 25.1207 · Compliance.
- 14 CFR 25.1301 · Function and installation.
- 14 CFR 25.1302 · Installed systems and equipment for use by the flightcrew.
- 14 CFR 25.1303 · Flight and navigation instruments.
- 14 CFR 25.1305 · Powerplant instruments.
- 14 CFR 25.1307 · Miscellaneous equipment.
- 14 CFR 25.1309 · Equipment, systems, and installations.
- 14 CFR 25.1310 · Power source capacity and distribution.
- 14 CFR 25.1316 · Electrical and electronic system lightning protection.
- 14 CFR 25.1317 · High-intensity Radiated Fields (HIRF) Protection.
- 14 CFR 25.1321 · Arrangement and visibility.
- 14 CFR 25.1322 · Flightcrew alerting.
- 14 CFR 25.1323 · Airspeed indicating system.
- 14 CFR 25.1324 · Angle of attack system.
- 14 CFR 25.1325 · Static pressure systems.
- 14 CFR 25.1326 · Pitot heat indication systems.
- 14 CFR 25.1327 · Magnetic direction indicator.
- 14 CFR 25.1329 · Flight guidance system.
- 14 CFR 25.1331 · Instruments using a power supply.
- 14 CFR 25.1333 · Instrument systems.
- 14 CFR 25.1337 · Powerplant instruments.
- 14 CFR 25.1351 · General.
- 14 CFR 25.1353 · Electrical equipment and installations.
- 14 CFR 25.1355 · Distribution system.
- 14 CFR 25.1357 · Circuit protective devices.
- 14 CFR 25.1360 · Precautions against injury.
- 14 CFR 25.1362 · Electrical supplies for emergency conditions.
- 14 CFR 25.1363 · Electrical system tests.
- 14 CFR 25.1365 · Electrical appliances, motors, and transformers.
- 14 CFR 25.1381 · Instrument lights.
- 14 CFR 25.1383 · Landing lights.
- 14 CFR 25.1385 · Position light system installation.
- 14 CFR 25.1387 · Position light system dihedral angles.
- 14 CFR 25.1389 · Position light distribution and intensities.
- 14 CFR 25.1391 · Minimum intensities in the horizontal plane of forward and rear position lights.
- 14 CFR 25.1393 · Minimum intensities in any vertical plane of forward and rear position lights.
- 14 CFR 25.1395 · Maximum intensities in overlapping beams of forward and rear position lights.
- 14 CFR 25.1397 · Color specifications.
- 14 CFR 25.1399 · Riding light.
- 14 CFR 25.1401 · Anticollision light system.
- 14 CFR 25.1403 · Wing icing detection lights.
- 14 CFR 25.1411 · General.
- 14 CFR 25.1415 · Ditching equipment.
- 14 CFR 25.1419 · Ice protection.
- 14 CFR 25.1420 · Supercooled large drop icing conditions.
- 14 CFR 25.1421 · Megaphones.
- 14 CFR 25.1423 · Public address system.
- 14 CFR 25.1431 · Electronic equipment.
- 14 CFR 25.1433 · Vacuum systems.
- 14 CFR 25.1435 · Hydraulic systems.
- 14 CFR 25.1438 · Pressurization and pneumatic systems.
- 14 CFR 25.1439 · Protective breathing equipment.
- 14 CFR 25.1441 · Oxygen equipment and supply.
- 14 CFR 25.1443 · Minimum mass flow of supplemental oxygen.
- 14 CFR 25.1445 · Equipment standards for the oxygen distributing system.
- 14 CFR 25.1447 · Equipment standards for oxygen dispensing units.
- 14 CFR 25.1449 · Means for determining use of oxygen.