(a) Except for purposes which are to be financed by the issuance of bonds or by special assessments, or for other purposes and chargeable to the budget appropriation, no money shall be drawn from the general fund of the City without an appropriation thereof, nor shall any obligations for the expenditures of money be incurred without an appropriation covering all payments which will be due under such obligation in the current year. The Council by resolution may transfer any unencumbered appropriation balance, or any portion thereof, from one department account, fund or agency to another.
(b) Expenditures shall not be charged directly to any contingent or general account. Instead, the necessary amount of the appropriation from such account shall be transferred to the appropriate budget item or account and, the expenditures then charged thereto.
(c) At the beginning of each quarterly period during the fiscal year, and more often if required by the Council, the City Administrator shall submit to the Council data showing the relation between the estimated and actual revenues and expenditures to date; and if it shall appear that the revenues are less than anticipated, the Council may reduce appropriations, except amounts required for debt and interest charges, to such a degree as may be necessary to keep expenditures within the revenues.
(d) (1) The Council may, by ordinance, establish and maintain accounts for accumulating moneys to be used for acquiring, extending, altering, constructing, or repairing public improvements or public buildings and for the purchase of equipment of any type, in each case either for a specific item or items or for future unspecified public improvements or equipment or both.
(2) Appropriations to such accounts may be made by the Council either in the annual appropriation resolution or, from time to time during the fiscal year, from available funds, from whatever source derived, which are not required for other appropriations or obligations of the City. Such accounts shall be continuing accounts and the balances therein at the end of each fiscal year shall remain a part thereof.
(3) Moneys which are accumulated for the purposes of public improvements or buildings, as set forth in subsection (e) (1) hereof, shall be used only at the direction of the Council, and only for the purposes provided in the original ordinance establishing such account, unless their use for some other municipal purposes be authorized by a majority vote of the electors of the City who vote on the proposition to amend such ordinance to provide for a change in the use of the moneys in such account. After the purpose of any such account has been fulfilled, any balance remaining therein may be transferred by the Council to any other account of the City.
(4) Moneys which are accumulated for the purpose of purchasing equipment, as set forth in subsection (e) (1) hereof, shall be expended only for the purpose provided in the ordinance establishing any such account or as such ordinance may be amended from time to time.