What are the new guidelines? Effective May 29, Massachusetts is rescinding its face covering order and replacing it with new guidance from the Centers for Disease Control and Prevention. That change means vaccinated people will no longer need to wear a mask indoors or maintain social distancing. The Department of Public Health is issuing a public health advisory, however, asking unvaccinated people to continue to wear their masks indoors. Almost all business restrictions will also be lifted, but individual establishments may choose to set their own guidance. So, pay attention when entering a restaurant or store â do they have a sign posted at the door that says all customers must wear masks? Most likely, restaurants will be clear and upfront about their protocols if they differ from the state and CDC guidelines.