In an emergency piece of legislation Tuesday, Taylor Overton, a second-year College student and former chief of cabinet, was appointed to the position.
Student Council also passed a bill to approve new CIOs: the Gizmologists, Green Greeks and Student Veterans of America.
Langer discussed the challenges facing ethnic and religious minorities in Western European nations.
The bill granted CIO status to Ducks Unlimited, which works in coordination with its national chapter to inform students about the importance of conserving wetlands.
The meeting marked the first of the term for Student Council's newly-elected leaders.
Second-year College Student Ellie Brasacchio will continue to serve as chair of the Student Council Representative Body.
The Darden Basketball Club, the Muslim Law Students Association and the Institute of Electrical and Electronics Engineers Microwave Theory and Techniques Student Chapter were recognized as CIOs.
CIO status was granted to the Virginia Woodsmen Team and the Medical Dancers.
Student Council President-Elect Alex Cintron also announced his chief of cabinet.