I pushed this question directly to the source that knows the accurate answer. However last time this question was asked and answered (a few years ago and if I recollect accurately) there would be some additional training and certs required.
If I "recall correctly" civilian Air Traffic Control is somewhat certification compartmentalized as there is Tower, Approach Control, Departure Control, Airways Control and probably a few other airspace, runway, ground control (taxi way and parking operations) I'm completely ignorant of. Grand Canyon Mid-air Collision Animation
is an animation of June 1956 midair collision over the Grand Canyon. The accident was a major factor leading to the creation of the Federal Aviation Agency in 1958, and to major changes in the control of air traffic. Lessons Learned: Midair collision betwee...es Douglas DC-7 Greatest air tragedy of its time in U.S. aviation