(a) After the conclusion of the nonadjudicatory hearings, and no later than 150 days after acceptance of the notice, the presiding member shall prepare and publish a summary of the hearing record and a hearing order pursuant to Public Resources Code Sections 25512 and 25512.5 to guide subsequent adjudicatory hearings.

(b) The hearing order shall identify issues to be adjudicated in subsequent hearings, issues which have been eliminated, and issues which should be deferred to the certification proceeding. To the extent permitted by the record, the summary shall also include proposed findings on matters relevant to the final report and proposed conditions for filing an application.

(c) Based upon information presented in the hearings, the summary and hearing order shall briefly describe each siting proposal, shall summarize the principal significant environmental effects of each siting proposal, and shall describe reasonable alternatives and mitigation measures which could substantially reduce the adverse effects. The summary and hearing order shall list environmental issues regarding potential adverse effects, mitigation measures, and alternatives which require resolution in the subsequent adjudicatory hearings. The summary should briefly describe and discuss those environmental issues important to a decision on the notice.

(d) The presiding member shall publish notice of the availability of the summary and hearing order in a newspaper of general circulation for the county or counties where the sites are located.

(e) The presiding member shall provide all parties with a reasonable opportunity to submit comments, recommendations, and proposed findings and conclusions for the summary and hearing order prior to its preparation. The presiding member may hold a public conference to consider amendments to the hearing order after its publication.