Dover succeeds Anne Gribbons who left the post after a dismal showing at the 2012 Olympics in London. He was chosen over European candidate Rien van der Schaft.
The executive committee says contract negotiations are pending.
“The game changer will be making sure we have superbly trained and prepared riders and horses, constantly coming up through the pipeline in greater numbers every year,” said Dover in a statement on his website. “Only then will we see an “American Machine” which will outlast all of us individually and continue indefinitely into the future, the Solid Gold future we dream of!”
Dover competed in the Olympics six consecutive times for the United States Equestrian Team. He also competed on four World Championship Teams and seven World Cups.
Dover trains out of Stillpoint Farm in Wellington, Florida.