Oxygen and portable oxygen concentrators for medical use by passengers

This regulation governs when Part 135 operators (commuter and on-demand air carriers) may allow passengers to use medical oxygen equipment aboard aircraft.

Traditional medical oxygen systems require the equipment to meet DOT hazmat standards, be properly maintained, free of flammable contaminants, and securely stowed. The pilot in command must be notified when oxygen is aboard. No smoking or open flames are permitted within 10 feet of oxygen equipment, and only trained personnel may connect or disconnect oxygen bottles while passengers are aboard.

Portable oxygen concentrators (POCs) have simpler rules since August 2016. Passengers may carry and use approved POCs during all flight phases if the device is FDA-approved, doesn't interfere with aircraft systems, meets pressure limits, and bears the required FAA certification label. A list of pre-approved POC models is grandfathered without needing the label.

Emergency medical services may deviate from equipment requirements when no other transport is available, but must report the deviation to the FAA within 10 days.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*