(a) The board shall perform duties required of it by this article and shall, in addition thereto, be responsible for adoption of all policies and promulgation of all rules and regulations not in conflict with this article that may be necessary and appropriate to the administration of the department, to the accomplishment of the purposes of this article, and to the performance of the duties and functions of the department as set forth in this article.

(b) The board shall establish rules and regulations for the government, operation, and maintenance of all training schools, facilities, and institutions now or hereafter under the jurisdiction and control of the department, bearing in mind at all times that the purpose for existence and operation of such schools, facilities, and institutions and all activities carried on therein shall be to carry out the rehabilitative program provided for by this article and to restore and build up the self-respect and self-reliance of children and youths lodged therein so as to qualify and equip them for good citizenship and honorable employment.