When operating Class 2-High Power Rockets or Class 3-Advanced High Power Rockets, you must comply with the General Operating Limitations of § 101.23. In addition, you must not operate Class 2-High Power Rockets or Class 3-Advanced High Power Rockets—
At any altitude where clouds or obscuring phenomena of more than five-tenths coverage prevails;
At any altitude where the horizontal visibility is less than five miles;
Into any cloud;
Between sunset and sunrise without prior authorization from the FAA;
Within 9.26 kilometers (5 nautical miles) of any airport boundary without prior authorization from the FAA;
In controlled airspace without prior authorization from the FAA;
Unless you observe the greater of the following separation distances from any person or property that is not associated with the operations:
Not less than one-quarter the maximum expected altitude;
457 meters (1,500 ft.);
Unless a person at least eighteen years old is present, is charged with ensuring the safety of the operation, and has final approval authority for initiating high-power rocket flight; and
Unless reasonable precautions are provided to report and control a fire caused by rocket activities.