Due to the current pandemic-related situation in Bonn, the City of Bonn has issued a new general decree. University management would like to inform you that, provisionally until October 31, 2020, the wearing of masks is compulsory at meetings on University of Bonn premises. According to this decree, you must also wear a mouth and nose cover when seated in libraries, lecture halls and seminar rooms. This regulation does not apply when there is only one person in an (office) room.
Further information on fighting the Corona pandemic at the University of Bonn can befound here1.