FAA Regulation

Not to exceed 30 days. Within 10 days. Any time.

Yes, as long as it meets Remote ID requirements. No, it is not permitted.  Yes, it is permitted without limitations.

The aircraft’s Document of Compliance The manufacturer’s Means of Compliance. The Certificate of Aircraft Registration. 

does not contain any exposed rotating parts that would lacerate human skins upon impact. has an airworthiness certificate issued under Part 21.  is labeled as Category 4.

is operated by a Part 61 certified pilot. documents maintenance, preventive maintenance, alterations, and inspections.  is only operated over small groups of people.

Ensure the aircraft is equipped with a parachute. Ensure that the area is restricted-access and that everyone inside moving vehicles inside the area are on notice.   Ensure that everyone inside ...

With the controlling agency’s authorization.   Regulations do not allow this. When flying on airways with an ATC clearance.

The National Transportation Safety Board. Upon request of the Federal Aviation Administration.  Air Traffic Control.