FAA Regulation

An injury requiring an overnight hospital stay.  Minor bruises. Scrapes and cuts bandaged on site.

receive type certification under Part 21. have remote ID for all operations over human beings. be operated by a Part 61 pilot.

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 ...

Person manipulating the controls. Remote Pilot in Command (Remote PIC).   Visual observer.

100 mph 100 kts 87 mph

ensure that the human beings who are not participating in the operation are under a covered structure or inside a non-moving vehicle. ensure the sUAS is equipped with a parachute make sure the area is closed or restricted-access.

12 hours. 8 hours. 24 hours.

Visual observer.  Person manipulating the controls. Remote PIC.

visual observer. remote pilot-in-command.  owner of the small UAS.

The owner of the aircraft. The manufacturer of the aircraft. The operator of the aircraft.