NASSAU COUNTY, Fla. – The city of Fernandina Beach announced it will require face masks. The mandate applies to anyone over age 6, who’s in a public indoor space and cannot social distance. Clay, Nassau, Putnam and St. Johns County all set daily records for new coronavirus cases on Thursday. RELATED | Jacksonville changes course, issues face mask mandateViolations will be a second-degree misdemeanor that could be punished with a $500 fine and 60 days in jail. The new mandate is to be enforced by the Police Department and is set to expire in 30 days, unless later extended.