UPDATE 1-U.S. FAA grants four companies permission to use drones commercially
December 10, 2014 at 10:14 AM EST
WASHINGTON, Dec 10 (Reuters) - The U.S. Federal Aviation Administration said on Wednesday it granted exemptions to four companies to use drones commercially for aerial surveying, construction site monitoring and oil rig flare stack inspections, further opening the U.S. airspace to drone flights by businesses.
