The University of Colorado is allowing its students to carry concealed guns with them on campus. As long as students are 21 or older and have a license to carry a weapon, they can bring guns with them to class, the bookstore, and the quad.

The state Supreme Court in March ruled against a 1994 campus ban on firearms. Guns are still banned from sporting events and in dorm rooms on the Boulder campus, but students who insist on having a gun with them at all times are able to request graduate level housing.

“Residence hall students who have a concealed carry permit or who obtain [one] under Colorado law during the housing contract period may seek to be relocated to a University Apartment (if space is available) or be released from the residence hall contract without financial penalty,” reads a statement by the university.

The new rules have caused concern among a number of parents and students of the university, who worry about their safety after gunman James Holmes shot 70 people in an Aurora theater this summer.

“I definitely would not feel safe if they allowed guns on campus, in the halls. I would not be comfortable with that at all,” Cindy Rosethal, a mother of a freshman at the university, told National Public Radio.

“Especially with what happened in Aurora a couple of weeks ago, and Virginia Tech, and all of the stuff that’s happened on college campuses now… You never know what’s going to happen,” said incoming freshman Joe Ramsburger.