February 4 (Sat.) - April 21 (Fri.) All course withdrawals noted with a grade of "W" on academic record
March 6 (Mon.) - May 29 (Mon.) Open Registration for Summer Sessions 2023
March 12 (Sun.) - March 19 (Sun.) Spring Vacation (UNL offices are open Monday through Friday)
March 24 (Fri.) Last day to change a full semester course registration to or from "Pass/No Pass"
More details at: https://registrar.unl.edu/academic-calendar/