(a) Special Funds. Each Proprietary Department shall have one or more special funds including accounts or subaccounts for the purpose of segregating its revenues from other money of the City.
(b) Expenditures. The board of each Proprietary Department shall have control over its special funds, consistent with other provisions of the Charter. For Departmental Purposes, a board shall have the power to appropriate and expend all money in the department’s special revenue funds and of all money derived from the sale of bonds of the department.