On May 13th, the CDC dropped the recommendation of wearing a mask for fully vaccinated persons. However, the CDC guidelines are only recommendations, not law. Federal, state, and local laws still apply. California law still has a mask requirement, so even fully vaccinated people should still be wearing masks inside businesses. The state has opted to wait until June 15th to remove this requirement.
Not everyone in California is vaccinated yet, particularly in underserved communities. The hope is that the four week period will help ensure more people are vaccinated, as well as give businesses time to readjust to the new regulations. Vaccination progress will be monitored. Current trends are good, so if they continue as they have been, vaccinated people should be able to keep their masks off after June 15th. Of course, the virus doesn’t care about laws — it may still be there after that date, so if you want to stay safe, nothing is preventing you from continuing to wear your mask until you feel comfortable.