I am somewhat familiar with what's going on in the U.S. We have members on a working group with the FAA right now.
The regulations are still under development. There are a lot of ideas being thrown around. Certainly the line of sight is one to look at, as well as collision avoidance systems.
It's the drones in the national airspace system that are most concerning to us, because that's the airspace we would share with these drones and that's the area on which we are concentrating our efforts most.