FAR §91.3 Responsibility and authority of the pilot in command. (a) The pilot in command of an aircraft is directly responsible for, and is the final authorit

FAR §91.3 Responsibility and authority of the pilot in command. (a) The pilot in command of an aircraft is directly responsible for, and is the final authority as to, the operation of that aircraft. and FAR §135.125 Aircraft security. Certificate holders conducting operators conducting operations under this part must comply with the applicable security requirements in 49 CFR chapter XII. The first applies to all flights, the second applies to air taxi flights. Equivalents for flying taxis are indicated, but it's a whole separate paradigm. Who is the pilot in command of an autonomous flying taxi? That has very clear implications today with human pilots. It's really vague what that thing is in a pilotless paradigm. There's probably a distinction between rides with strangers and rides with friends and family. If I know everyone in my flying taxi, that's probably more like a FAR 91 flight, and maybe it's sane to have a minimal security paradigm. If there are strangers on the flight, that's trending toward FAR 135 requirement.