(a) The Chief Administrative Law Judge shall assign each case to an Administrative Law Judge qualified in accordance with law to preside over the hearing. Such assignments shall be made, so far as practical, in rotation.

(b) The presiding officer shall have authority to:

(1) Administer oaths and affirmations;

(2) Examine witnesses;

(3) Rule upon matters of evidence and procedure;

(4) Order any pleading amended upon motion of a party at any time prior to the close of the hearing;

(5) Maintain discipline and decorum and exclude from the hearing any person acting in an indecorous manner;

(6) Require the filing of briefs on any matter upon which he or she is required to rule;

(7) Order prehearing conferences for the settlement or simplification of issues by consent of the parties;

(8) Order the proceeding reopened at any time prior to his or her decision for the receipt of additional evidence;

(9) Render an initial decision.