FAA proposes to raise the altitudes at which a pilot is required to don an oxygen mask for commuter and on demand operations, as directed by the 2024 FAA Reauthorization Act, and revise the pilot oxygen mask requirements applicable to general aviation operations in pressurized aircraft. The proposed amendments would allow the operation of airplanes at higher altitudes without requiring at least one pilot at the controls to wear and use an oxygen mask. If adopted, these proposed changes would reduce regulatory and economic burdens on airplane operators by removing certain restrictions pertaining to pilots’ use of oxygen masks.