FAA Regulation

No more than three as long as the Remote PIC maintains visual line of sight. As many as he/she can handle. No more than one. 

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 ...

Every 8 months. Every 12 months. Every 24 months. 

No, the other people in the park are not on notice.  Yes, as long as the park is not busy enough that it would be considered an open-air assembly of human beings.

Compliant with Part 107 when used with a first-person view (FPV) camera system. Not compliant with Part 107. Compliant with Part 107.

Compliant with Part 107. Part 107 does not apply to this scenario. Not compliant with Part 107. 

Only when the operator will be paid for commercial services. All civilian small UAs weighing greater than .55 pounds must be registered regardless of its intended use.  When the small UA ...

Yes, as long as the aircraft is equipped with an anti-collision light visible from 3SM. Yes, as long as the sUAS is equipped with Remote ID.  No, only transiting flights are ...