Education Secretary Betsy DeVos proposed changes to Title IX that would affect how colleges handle sexual misconduct complaints.
The investigation originated in 2013 when a former student filed a grievance accusing the university of violating her rights in its handling of her sexual assault.
On Friday, DeVos retracted Obama-era guidance on how universities handle sexual assault cases but a Colorado university says it won't change the way they investigate.
In the Obama era, the U.S. Department of Education opened seven Title IX investigations into five Colorado colleges. Those cases are still open.
Two students transferring to CU Boulder say society and culture need to change before sexual assault is eliminated from college campuses.
With increasing pressure from the White House and victims, some schools are turning to independent investigators with expertise in sexual violence.
The University of Denver, Regis University, the University of Colorado Boulder and CU Denver are among the 55 institutions nationwide under federal investigation.