46 C.F.R. § 201.146
Documents to be submitted for the record after the close of the hearing will not be received in evidence except upon ruling of the presiding officer. Such documents when submitted shall be accompanied by proof that copies have been served upon all parties, who shall have an opportunity to comment thereon; and shall be received not later than ten (10) days after the close of the hearing except for good cause shown, and not less than ten (10) days prior to the date set for filing briefs. Exhibit numbers should be assigned by counsel or the party. In computing the time within which to file such documents or other writings the five (5) additional days provided in § 201.54 shall not apply. Documents which are submitted but do not comply with the provisions of this rule will be filed in the correspondence section of the docket.
46 C.F.R. §201.146