(a) All agencies shall cooperate with the chief administrative law judge and with other administrative law judges of the office in the matters involving the duties of the office.
(b) Except as provided under AS 44.64.070 or by regulation adopted under this chapter, an agency may not select or reject a particular administrative law judge for assignment to an administrative hearing.
(c) After an administrative hearing is referred by an agency to the office for hearing, the agency may not take further adjudicatory action in the case, except as a party litigant or to render a final decision as provided by law. This subsection does not otherwise limit the agency's authority to take action affecting a party to the case.