|(a) A Board or Agency grantee may file a motion for rehearing for the presentation of new evidence within 30 days from the date the decision is mailed. A rehearing shall be granted only for the presentation of new evidence. (b) A motion for rehearing shall be in writing and allege the new evidence to be considered. (c) If the hearing officer determines that the alleged new evidence warrants a rehearing, a rehearing shall be scheduled at a reasonable time and place. (d) The hearing officer shall issue a written proposal for decision in response to a timely filed motion for rehearing. The proposal for decision shall be submitted to the Agency's executive director for issuance of a final decision.