(a) The secretary is the administrative head of the department, controls and supervises the department, and is responsible for the work of all department employees.
(b) The secretary has the power and authority set forth in this article or elsewhere in code, including, but not limited to, the power and authority specified in 5F-2-2 of this code.
(c) The secretary may employ professional staff, including, but not limited to, certified public accountants, engineers, attorneys, deputies, assistants, hearing officers, and other employees as necessary for the efficient operation of the department, may prescribe their powers and duties, and may fix their compensation within the amounts appropriated and in accordance with the departments merit-based system authorized in 5F-2-8 of this code.
(d) The secretary may designate any administrator or employee of the department as the secretarys designee on any board, authority, or commission on which the secretary serves. An administrator or employee thus designated may take the secretarys place in any hearings, appeals, meetings, or other activities, and such designee shall have the same powers, duties, authority, and responsibility as the secretary.
(e) The secretary may arrange for any of the departments agencies to utilize the services of the department or any other agency within the department, on an as-needed or ongoing basis, for the cost-effective and efficient administration of the department. Interagency agreements may be executed among the departments agencies, or between one or more agencies and the department, if, in the secretarys discretion, such agreement is desired or necessary for the cost-effective and efficient administration of the department.
(f) The secretary shall ensure that the department and its agencies carry out functions in a manner that supplements, complements, and complies with policies, programs, and funding requirements of the Federal Aviation Administration, the Federal Highway Administration, the Federal Railroad Administration, and the Federal Transit Administration, as applicable. The secretary may require that administrators and employees of the department or its agencies consult with appropriate federal, state, and local governmental units to ensure that the department is aware of and in compliance with policies, programs, laws, and regulations affecting the department.
(g) The secretary may, on behalf of the department, sign in the name of the state any contract or agreement with any division, agency, or other unit of federal, state, or local government, any legal entity, or any individual: Provided, That the powers granted to the secretary under this subsection may not exceed, or be interpreted as authority to exceed, the powers granted by the Legislature to the department or the various agencies of the department.