Section 57. The administrator may from time to time, subject to the approval of the secretary, establish within the registry such administrative units as may be necessary for the efficient and economical administration of the registry, and when necessary for such purpose, may abolish any such administrative unit, or may merge any 2 or more units, as the administrator deems advisable. The administrator shall assign to all officials, agents and employees of the units their respective duties. The administrator shall prepare and keep current a statement of the organization of the registry, of the assignment of its functions to its various administrative units, offices and employees, and of the places at which and the methods whereby the public may receive information or make requests. Such statement shall be known as the registry's description of organization. A current copy of the description of organization shall be kept on file in the office of the state secretary and in the office of the secretary of administration and finance.