The University of California and the California State University system (including Sonoma State University) will require COVID-19 vaccine boosters for students and workers. Students, staff and faculty must get the shot to be eligible for on-campus instruction and activities. UC officials say those eligible must upload proof of receiving a vaccination booster by January 31st. The CSU deadline to get a booster is February 28th or six months after an individual received the final dose of the original vaccination. Both university systems will honor valid medical and religious exemptions.