§ 121.211 - Applicability.

§ 121.213 - [Reserved]

§ 121.215 - Cabin interiors.

§ 121.217 - Internal doors.

§ 121.219 - Ventilation.

§ 121.221 - Fire precautions.

§ 121.223 - Proof of compliance with § 121.221.

§ 121.225 - Propeller deicing fluid.

§ 121.227 - Pressure cross-feed arrangements.

§ 121.229 - Location of fuel tanks.

§ 121.231 - Fuel system lines and fittings.

§ 121.233 - Fuel lines and fittings in designated fire zones.

§ 121.235 - Fuel valves.

§ 121.237 - Oil lines and fittings in designated fire zones.

§ 121.239 - Oil valves.

§ 121.241 - Oil system drains.

§ 121.243 - Engine breather lines.

§ 121.245 - Fire walls.

§ 121.247 - Fire-wall construction.

§ 121.249 - Cowling.

§ 121.251 - Engine accessory section diaphragm.

§ 121.253 - Powerplant fire protection.

§ 121.255 - Flammable fluids.

§ 121.257 - Shutoff means.

§ 121.259 - Lines and fittings.

§ 121.261 - Vent and drain lines.

§ 121.263 - Fire-extinguishing systems.

§ 121.265 - Fire-extinguishing agents.

§ 121.267 - Extinguishing agent container pressure relief.

§ 121.269 - Extinguishing agent container compartment temperature.

§ 121.271 - Fire-extinguishing system materials.

§ 121.273 - Fire-detector systems.

§ 121.275 - Fire detectors.

§ 121.277 - Protection of other airplane components against fire.

§ 121.279 - Control of engine rotation.

§ 121.281 - Fuel system independence.

§ 121.283 - Induction system ice prevention.

§ 121.285 - Carriage of cargo in passenger compartments.

§ 121.287 - Carriage of cargo in cargo compartments.

§ 121.289 - Landing gear: Aural warning device.

§ 121.291 - Demonstration of emergency evacuation procedures.

§ 121.293 - Special airworthiness requirements for nontransport category airplanes type certificated after December 31, 1964.

§ 121.295 - Location for a suspect device.