FAA Regulation

must not cause injury equivalent to 25 foot-pounds of kinetic energy upon impact. be operated in accordance with the operating limitations specified in the approved Flight Manual. be 0.55 pounds or ...

They can maintain line of sight and without loss of control.  They briefed each other before the flight. They are in radio contact the entire time.

55 lbs. or less. 55 kg or less. Less than 55 lbs. 

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

Yes, it will cost $5 per aircraft. They don’t need to, your aircraft are already registered and your pilots are certificated. No, they will have to obtain operating authority from the Department of Transportation.

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 ...

Name and Phone Number of the Operator. Address and phone number of the pilot. Location and altitude of the controller.

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

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

filed a IFR flight plan. received prior authorization from the controlling agency.  received prior permission from the commanding officer of the nearest military base.