<human>:  What is the law regulating the use of drones in North America?
<bot>: The laws regarding the use of drones in North America vary by country, but generally they require operators to follow certain safety guidelines and may restrict the altitude, area of operation, and use of drones for commercial purposes. In the United States, the Federal Aviation Administration regulates the commercial use of drones and established a registration system for drone operators. In Canada, the Transport Canada Agency regulates the use of drones as part of the Canadian Aviation Regulations.