I’ve got a “drone”, but I couldn’t get close to a large aircraft.

Toys and small drones that don’t present a safety threat are likely to be exempt. Drones that weigh only a pound or two or that can’t fly higher than a few hundred feet are considered less risky. Heavier ones and those that can fly thousands of feet pose more of a problem. 

I’m sure most of the ones that people will be buying @ Xmas will be the small toy ones, like the one I have. DJI Phantom II & III.

Source: Feds to require drone registration after close calls | Fox News