To the presiding officer is delegated the authority to render initial or recommended decisions in all proceedings before him, including motions, petitions and other pleadings. Tentative or final decisions will be rendered by the Administration. The same officers who preside at the reception of evidence pursuant to section 7 of the Administrative Procedure Act shall render the initial or recommended decisions except where such officers become unavailable to the Administration, in which case another Presiding Officer will be designated to make such decision or certify the record to the Administration. Where the Administration requires the entire record in the case to be certified to it for initial decision, the Presiding Officer shall first recommend a decision, except that in rule making:
46 C.F.R. § 201.158