The move, announced by the Federal Aviation Administration, comes at a time when the agency is receiving more than 100 reports per month about drones flying near manned aircraft. The FAA prohibits drones and model airplanes from flying higher than 400 feet or within 5 miles of an airport.
Drones have become increasingly popular with hobbyists. The FAA estimates that 1.6 million small unmanned aircraft will be sold this year, with half during the last three months of the year.
The drones must be marked with the owner's unique registration number. The FAA said that would let authorities track down owners if they violate the rules. But registration also gives the agency a vehicle to educate owners just as thousands get drones as presents for Christmas and other holidays.
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