(1) The accrual accounting of all revenues and other receipts from whatever source;
(2) The accounting of expenditures under the several items of appropriation in accordance with the expenditure schedule;
(3) Monthly and quarterly reports of rate of expenditure, encumbrances, and free balances under the several items of appropriation;
(4) Methods of accounting practice and procedures to be followed in the use of the uniform system.
The accounting requirements so formulated shall be certified by the secretary of the board to the tax commissioner. The tax commissioner shall then incorporate the requirements into a uniform system of school district accounting and as chief inspector and supervisor of public offices, shall prescribe the use of the uniform system by all county school districts by virtue of the authority vested in him by section two, article nine, chapter six of this code.