The Hearing Examiner presiding shall, after the close of the arbitration, prepare a proposed arbitration decision, including a statement of findings and conclusions and the reasons or basis therefor, on all the material issues of fact, law or discretion presented on the record. Such proposed arbitration decision, shall be served by the Chief Clerk of the Commission on all parties to the arbitration.
Ill. Admin. Code tit. 83, § 761.420