The Bulloch County Board of Commissioners voted Tuesday not to roll back millage rates after an increase last year. According to the Taxpayer Bill of Rights, or TABOR, adopted by the Georgia General Assembly in 1999, a county government is allowed the option to roll back millage or leave it unchanged, said Bulloch County Manager Tom Couch. After the annual digest is prepared, if property tax collections are estimated to be more than the year before because of increased assessment values, that option is available, he said.