Regulation 772 of the Academic Senate states that a written examination, not to exceed three hours, is required in all undergraduate courses (http://senate.universityofcalifornia.edu/bylaws-regulations/regulations/rpart3.html#r770(link is external)). The examination must be given during the examination period scheduled by the Registrar's Office, unless COCI grants a variance (see section 3.2.1). Final examinations are not required in graduate courses, but are optional at the discretion of the instructor. If a graduate course has a final exam, COCI does not need to approve any changes to the final exam schedule, but the department should notify Classroom Scheduling at scheduling@berkeley.edu(link sends e-mail).