Contemplating a return to restaurants? Hereâs what you need to know A deeply researched set of guidelines aims to keep diners and workers as safe as possible By Devra First Globe Staff,Updated April 20, 2021, 2 hours ago Email to a Friend The scene at Novara, a restaurant on Adams Street in Milton.Jim Davis/Globe Staff/file On April 19, everyone 16 or older became eligible for COVID-19 vaccination. In Massachusetts, restaurant employees qualified March 22. In the coming weeks, as people continue to get their shots, many will be contemplating a return to dining out. How can those who eat and work in restaurants do so in the safest way possible?