The 1999 NCAA Division I Outdoor Track and Field Championships were held June 2−5 at Bronco Stadium at Boise State University in Boise, Idaho. It determined the individual and team national champions of men's and women's collegiate Division I outdoor track and field events in the United States.

The 1998 NCAA Division I Outdoor Track and Field Championships were contested June 3−6 at University at Buffalo Stadium at the University at Buffalo in Buffalo, New York in order to determine the individual and team national champions of men's and women's collegiate Division I outdoor track and field events in the United States.