By contrast, masks once again became mandatory Monday at a host of locations, including San Diego Unified schools, UC Irvine and San Diego military bases. Face coverings are also required at UCLA, UC Riverside and Los Angeles film sets, and are a precondition — along with proof of vaccination or a negative COVID test — to attending the massive Comic-Con International convention in San Diego later this week.
Amid new COVID surge, confusing mix of rules
CalMatters, July 19, 2022
July 19, 2022