You have until Feb. 19 to register this with the FAA. Also this and these.
"We're going to require operators of drones to register their aircraft just like commercial drone operators do currently," U.S. Secretary of Transportation Anthony Foxx said at a press conference in October.
Every unmanned aircraft heavier than .55 pounds must have a registration number before takeoff. (Video via 3D Robotics, DJI)
Registration opens Dec. 21 and costs $5, but it's free for the first 30 days.
Failure to register could mean fines up to $250,000 and/or three years in prison. (Video via FAA)
This video includes images from Getty Images and Dave_S. / CC BY 2.0.