Diné College, the first tribally-controlled institution of higher learning in the U.S., recently enacted a 50 percent tuition discount for students — new, returning, continuing, and transferring — who enroll for the fall 2020 semester.Diné College, the first tribally-controlled institution of higher learning in the U.S., recently enacted a 50 percent tuition discount for students — new, returning, continuing, and transferring — who enroll for the fall 2020 semester.