>I assume there's some permitting regime, There probably isn't a specific permit or process for two primary reasons. Firstly, crashing a plane intentionally i

>I assume there's some permitting regime, There probably isn't a specific permit or process for two primary reasons. Firstly, crashing a plane intentionally is a rare thing and (until now, apparently) isn't the kind of thing the riff raff do so there's no reason to throw up barriers to keep the riff raff out nor enough volume requests to warrant a an institutional process for dishing out said denials. Second, it is naive to expect a government agency to stick their neck out and accept some degree of liability for something like this (which is what approving a comprehensive plan would do). It's not like there's highly developed industry standards for plane crashing they can rely on. The closest you'll get to a "permit" is probably the FAA knowing your intentions in advance and not objecting.