Kentucky State Police said Scottie Ingle, 30, illegally passed a stopped school bus and hit a teenager who was trying to get on the bus.
The teenager, whose name was not released, was airlifted to U.K. Hospital with an injured leg.
State Police said it happened around 7:00 a.m. Wednesday on Highway 519 in Rowan County.
Investigators said Ingle was charged with Illegal Passing of a School Bus and Wanton Endangerment.
He was initially lodged in the Rowan County Detention Center.