Summer 2023 spans the 10 weeks from June 5 - August 12.  Instructors can offer sessions of varying lengths,  but all sessions have to either start on the first day (June 5) or end on the last day (August 12). Most of the classes offered by the department this summer are 6-week sessions and are online. The only on-campus class in the first six weeks (06/05-07/15) is one of Peter Aguilar's CRNs of BMS 107 (80401).  Barry Tanowitz's BMS 108 (80258) starts in week 4 (07/03-08/12) This CRN has an on campus lab. The lectures for 80401 and 80258 are online.