[andrewfhart]

regarding the concept... the part I like about it is that it provides a mechanism for property owners to at least have a "say" in what flies over their property (and when). It's perhaps not a big deal now, but if drone delivery, et. al. become commonplace, I see this as the drone equivalent of a do-not-call list.

[mercurialshark]

Agreed, the voluntary participation component is a material differentiator, as opposed to thrusting air traffic over people's homes or property, as is the case with most infrastructure development (railway, pipelines, transmission lines, etc) usually in the form of an eminent domain action.