The University of Arizona has suspended activities for every chapter in its Interfraternity Council, citing a growing number of misconduct reports and investigations involving fraternity members. The interim suspension took effect immediately under an Oct. 5 directive from Dean of Students Chrissy Lieberman. It bars chapters from hosting, attending, participating in or sponsoring organizational activities; business meetings are allowed. Chapters must still attend required university events, training and other community-wide programs. The university is investigating multiple reports involving nearly half of the council’s 21 chapters, Lieberman wrote. Allegations include physical assault, hazing, drug and alcohol violations, and creating unsafe environments. Some cases are also under criminal investigation, the letter said. The allegations have not all been resolved. Lieberman said several chapters were found responsible for conduct-code violations during the spring 2026 semester and remain on disciplinary status or under investigation. Some are already prohibited from activities or from engaging with new members. Chapter advisers must attend one of three mandatory meetings with Lieberman, scheduled for Oct. 6 and 7 at Bear Down Gym and Oct. 12 at Nugent Hall. Chapters that were in good standing can return to good standing after an adviser attends a meeting. Chapters must regain good standing before registering events, the directive says. Advisers will also be required to attend quarterly meetings. The letter says University of Arizona President Suresh Garimella met with fraternity leaders on Aug. 27 and warned that the school would act if chapters did not address conduct that violates university rules or the law. Reports have continued to come from parents, students and community members, Lieberman said, adding that the Dean of Students Office is at capacity for organizational investigations and that every case currently being handled involves an Interfraternity Council chapter. The university said investigations will take time and may affect chapters’ ability to hold events, participate in philanthropy and educate new members. It plans to work with the University of Arizona Police Department on the investigations.