AUGUSTA — Governor Janet Mills submitted Friday to the Legislature a supplemental budget proposal for Fiscal Year 2021 and a biennial budget proposal for Fiscal Years 2022-2023 that focus on maintaining vital services and increasing savings without creating new programs. The budgets are balanced as required by the Constitution and continue efficiencies, good fiscal management and curtailments to cover projected revenue shortfalls for all three fiscal years, according to a news release. The budgets do not change Maine tax rates and do not dip into the Budget Stabilization Fund; in fact they add to the state’s savings in order to preserve a solid financial foundation for the State, the release noted.