(1) There shall be set up and maintained in the office of the director of accounts and budgets a system of fiscal procedure, control and centralized accounting, set out and described in this section, which shall be under the administrative control and direction of the director; but such system shall be conducted in full accordance with the general law of this state respecting the duties and responsibilities of the county mayor as fiscal agent of the county.
(2) The system of fiscal procedure, control and accounting provided for in this section shall conform to generally accepted principles of governmental accounting and shall be in substantial agreement with the recommendations of the national committee on governmental accounting.
(3) The system shall include such records and procedures as may be required to accurately reflect the assets, liabilities, income and expenditures of each fund of the county, together with such records, accounts and files as are necessary to record and control: The transactions relating to county revenues, and the revenues for each of its several funds;
(4) The transactions relating to the adopted budget and appropriations, including the expenditures and encumbrances against each item of appropriations;
(5) The transactions relating to the bonded debt; and
(6) Such other records as may be necessary to facilitate the operation of the adopted budget and the proper accounting for each item of county expenditure.