The department of finance and administration has the power and is required to:

(1) Prepare and submit to the governor, annually, a state budget document in accordance with title 9, chapter 4, part 51;
(2) Prescribe forms for the preparation of the budget estimates by all the spending agencies of state government, and furnish every state officer, department and agency with a sufficient number of the budget estimate forms not later than October 15 of each year;
(3) Prescribe the classifications of expenditures and revenues for the purposes of budget making and accounting;
(4) Examine and recommend for approval the work program and quarterly allotments of each spending agency of state government before the appropriations made for such agency shall become available for expenditure;
(5) Examine and recommend for approval any changes made in the work program and quarterly allotments of any spending agency during the fiscal year;
(6) Investigate duplication of work among the departments and other agencies of state government, study the organization and administration of such departments and agencies, and formulate plans for better management and more efficient and economical operation;
(7) Prepare and report to the governor when requested, any financial data or statistics that the governor may require, such as monthly or quarterly estimates of the state’s income, and cost figures on the current operations of state institutions and other agencies; and
(8) Examine all requisitions for purchases as the department may deem necessary, with power and authority to refuse to approve or honor any and all requisitions for purchases, except requisitions for purchases of the general assembly, state court system, attorney general and reporter, secretary of state, comptroller of the treasury, and state treasurer.