(b) The Secretary may adopt regulations for the Department and its units.

(c) The Secretary may create any citizens’ advisory body that the Secretary considers necessary for the operation of the Department.

(d) The Secretary shall have a seal.

(e) (1) The Secretary is responsible for the comprehensive planning of programs and services of the Department.

(2) The Secretary shall review the plans of the units in the Department and may approve or disapprove any of the plans.