What regulations must be adhered to when flying high power rockets?

The correct choice highlights the relevant regulations for flying high power rockets. NFPA 1122 provides guidelines for model rocketry, establishing safety practices for launching and recovery, which are crucial when conducting high power rocket activities. NFPA 1127 specifically addresses high power rocketry, outlining standards for the design, construction, and operation of high power rockets. FAA Regulation Part 101 governs the use of unmanned free balloons and rockets, including aspects such as airspace use and safety procedures for launches, ensuring that the operation of high power rockets complies with federal regulations.

This combination of guidelines from both NFPA standards and FAA regulations creates a framework that helps ensure the safety of both participants and the general public during high power rocketry activities. These regulations work together to address various risks associated with high power rocketing, including safety during launches, recovery procedures, and compliance with airspace regulations.