The Secretary is responsible for the budget of the Department. The Secretary may adopt regulations for the Department. The Secretary shall review and shall have the power to approve or disapprove or revise the regulations of all boards, commissions, divisions, and other agencies within the jurisdiction of the Department. In addition to the meetings of any board or commission within the Department that are provided for by law or are called by the chair of the board or commission, the Secretary, whenever appropriate, may call a meeting of a board or commission to consider any subject that the Secretary considers necessary and proper. All boards, commissions, divisions, and other agencies of the Department shall report to the Secretary or the Secretary’s designee as provided in regulations or written directives of the Secretary. The Secretary may create any citizens’ advisory body that the Secretary considers necessary for the operation of the Department. The Secretary shall have a seal. The Secretary is responsible for the comprehensive planning of programs and services of the Department. The Secretary shall review and approve or disapprove the plans of the units in the Department. The Secretary or a staff member of the Department designated by the Secretary shall have access to information that relates to State planning in the possession of any unit of the State government, of a regional government, or of a local government. If the entry is made in a manner so as to cause no unnecessary injury, the Secretary or a staff member of the Department designated by the Secretary may enter, at any reasonable hour, on any land in order to make examinations and surveys that relate to State planning. After providing adequate public notice, the Secretary shall hold hearings on matters of State planning whenever it is in the public interest to do so. In the interest of intergovernmental cooperation, the Secretary shall attend: meetings of regional planning commissions; interstate planning conferences; and other planning conferences. The Secretary may contract for professional or consultant services for work related to State planning as provided in the State budget. The Secretary may exercise any power necessary and proper to discharge the Secretary’s duties.