The Deputy Director of the Department of Finance and Administration, acting under the authority granted to him or her by the Secretary of the Department of Finance and Administration, and under the laws relating to budget and accounting procedure, shall:
(1) Prepare and publish all necessary rules for carrying out the budget and accounting laws of the state and have the authority to require of any state agency the necessary fiscal information for carrying out such laws;
(2) Acting in behalf of the Governor and the secretary, prepare the preliminary budget information biennially to be submitted to the Legislative Council and to the members of the General Assembly for consideration of the budget requirements of all state agencies; and
(3) Be prepared, when called upon to do so, to appear before the Legislative Council and committees of the General Assembly for the purpose of supplying information and reporting upon the financial condition of the state or any of its agencies.