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- 14 CFR 121.197 · Airplanes: Turbine engine powered: Landing limitations: Alternate airports.
- 14 CFR 121.198 · Cargo service airplanes: Increased zero fuel and landing weights.
- 14 CFR 121.199 · Nontransport category airplanes: Takeoff limitations.
- 14 CFR 121.201 · Nontransport category airplanes: En route limitations: One engine inoperative.
- 14 CFR 121.203 · Nontransport category airplanes: Landing limitations: Destination airport.
- 14 CFR 121.205 · Nontransport category airplanes: Landing limitations: Alternate airport.
- 14 CFR 121.207 · Provisionally certificated airplanes: Operating limitations.
- 14 CFR 121.211 · Applicability.
- 14 CFR 121.213 · [Reserved]
- 14 CFR 121.215 · Cabin interiors.
- 14 CFR 121.217 · Internal doors.
- 14 CFR 121.219 · Ventilation.
- 14 CFR 121.221 · Fire precautions.
- 14 CFR 121.223 · Proof of compliance with § 121.221.
- 14 CFR 121.225 · Propeller deicing fluid.
- 14 CFR 121.227 · Pressure cross-feed arrangements.
- 14 CFR 121.229 · Location of fuel tanks.
- 14 CFR 121.231 · Fuel system lines and fittings.
- 14 CFR 121.233 · Fuel lines and fittings in designated fire zones.
- 14 CFR 121.235 · Fuel valves.
- 14 CFR 121.237 · Oil lines and fittings in designated fire zones.
- 14 CFR 121.239 · Oil valves.
- 14 CFR 121.241 · Oil system drains.
- 14 CFR 121.243 · Engine breather lines.
- 14 CFR 121.245 · Fire walls.
- 14 CFR 121.247 · Fire-wall construction.
- 14 CFR 121.249 · Cowling.
- 14 CFR 121.251 · Engine accessory section diaphragm.
- 14 CFR 121.253 · Powerplant fire protection.
- 14 CFR 121.255 · Flammable fluids.
- 14 CFR 121.257 · Shutoff means.
- 14 CFR 121.259 · Lines and fittings.
- 14 CFR 121.261 · Vent and drain lines.
- 14 CFR 121.263 · Fire-extinguishing systems.
- 14 CFR 121.265 · Fire-extinguishing agents.
- 14 CFR 121.267 · Extinguishing agent container pressure relief.
- 14 CFR 121.269 · Extinguishing agent container compartment temperature.
- 14 CFR 121.271 · Fire-extinguishing system materials.
- 14 CFR 121.273 · Fire-detector systems.
- 14 CFR 121.275 · Fire detectors.
- 14 CFR 121.277 · Protection of other airplane components against fire.
- 14 CFR 121.279 · Control of engine rotation.
- 14 CFR 121.281 · Fuel system independence.
- 14 CFR 121.283 · Induction system ice prevention.
- 14 CFR 121.285 · Carriage of cargo in passenger compartments.
- 14 CFR 121.287 · Carriage of cargo in cargo compartments.
- 14 CFR 121.289 · Landing gear: Aural warning device.
- 14 CFR 121.291 · Demonstration of emergency evacuation procedures.
- 14 CFR 121.293 · Special airworthiness requirements for nontransport category airplanes type certificated after December 31, 1964.
- 14 CFR 121.295 · Location for a suspect device.
- 14 CFR 121.301 · Applicability.
- 14 CFR 121.303 · Airplane instruments and equipment.
- 14 CFR 121.305 · Flight and navigational equipment.
- 14 CFR 121.306 · Portable electronic devices.
- 14 CFR 121.307 · Engine instruments.
- 14 CFR 121.308 · Lavatory fire protection.
- 14 CFR 121.309 · Emergency equipment.
- 14 CFR 121.310 · Additional emergency equipment.
- 14 CFR 121.311 · Seats, safety belts, and shoulder harnesses.
- 14 CFR 121.312 · Materials for compartment interiors.
- 14 CFR 121.313 · Miscellaneous equipment.
- 14 CFR 121.314 · Cargo and baggage compartments.
- 14 CFR 121.315 · Cockpit check procedure.
- 14 CFR 121.316 · Fuel tanks.
- 14 CFR 121.317 · Passenger information requirements, smoking prohibitions, and additional seat belt requirements.
- 14 CFR 121.318 · Public address system.
- 14 CFR 121.319 · Crewmember interphone system.
- 14 CFR 121.321 · Operations in icing.
- 14 CFR 121.323 · Instruments and equipment for operations at night.
- 14 CFR 121.325 · Instruments and equipment for operations under IFR or over-the-top.
- 14 CFR 121.326 · Radio Altimeter Systems.
- 14 CFR 121.327 · Supplemental oxygen: Reciprocating engine powered airplanes.
- 14 CFR 121.329 · Supplemental oxygen for sustenance: Turbine engine powered airplanes.
- 14 CFR 121.331 · Supplemental oxygen requirements for pressurized cabin airplanes: Reciprocating engine powered airplanes.
- 14 CFR 121.333 · Supplemental oxygen for emergency descent and for first aid; turbine engine powered airplanes with pressurized cabins.
- 14 CFR 121.335 · Equipment standards.
- 14 CFR 121.337 · Protective breathing equipment.
- 14 CFR 121.339 · Emergency equipment for extended over-water operations.
- 14 CFR 121.340 · Emergency flotation means.
- 14 CFR 121.341 · Equipment for operations in icing conditions.
- 14 CFR 121.342 · Pitot heat indication systems.
- 14 CFR 121.343 · Flight data recorders.
- 14 CFR 121.344 · Digital flight data recorders for transport category airplanes.
- 14 CFR 121.344a · a Digital flight data recorders for 10-19 seat airplanes.
- 14 CFR 121.345 · Radio equipment.
- 14 CFR 121.346 · Flight data recorders: filtered data.
- 14 CFR 121.347 · Communication and navigation equipment for operations under VFR over routes navigated by pilotage.
- 14 CFR 121.349 · Communication and navigation equipment for operations under VFR over routes not navigated by pilotage or for operations under IFR or over the top.
- 14 CFR 121.351 · Communication and navigation equipment for extended over-water operations and for certain other operations.
- 14 CFR 121.353 · Emergency equipment for operations over uninhabited terrain areas: Flag, supplemental, and certain domestic operations.
- 14 CFR 121.354 · Terrain awareness and warning system.
- 14 CFR 121.355 · Equipment for operations on which specialized means of navigation are used.
- 14 CFR 121.356 · Collision avoidance system.
- 14 CFR 121.357 · Airborne weather radar equipment requirements.
- 14 CFR 121.358 · Low-altitude windshear system equipment requirements.
- 14 CFR 121.359 · Cockpit voice recorders.
- 14 CFR 121.360 · [Reserved]
- 14 CFR 121.361 · Applicability.
- 14 CFR 121.363 · Responsibility for airworthiness.
- 14 CFR 121.365 · Maintenance, preventive maintenance, and alteration organization.