Boston December 20, 2021 6:14 pm Boston Business Owners React to City's New Proof of Vaccination Policy Many businesses have had some form of mandate in place already. Those who spoke to NBC10 Boston Monday night said they are happy to see the City of Boston take the lead. US & World Videos 1:57 Multi-family home catches fire in Mattapan 2:25 Dehydration, heat exhaustion send 10 kids to hospital in Lynn 1:34 Stabbing investigation underway at Carson Beach 2:22 Firefighter charged with stealing dead man's identity 2:26 Holiday travel rush underway as Memorial Day weekend begins