201.350—Record in proceedings before hearing officer; retention of documents; copies.
        
        (2) 
         Each application, motion, submission or other paper, and any amendments, motions, objections, and exceptions to or regarding them;
    
    
    
    
        
        (5) 
         With respect to a request to disqualify a hearing officer or to allow the hearing officer's withdrawal under  § 201.112, each affidavit or transcript of testimony taken and the decision made in connection with the request;
    
    
    
    
    
    
        
        (b) Retention of documents not admitted.
         Any document offered into evidence but excluded shall not be considered a part of the record. The Secretary shall retain any such document until the later of the date upon which a Commission order ending the proceeding becomes final, or the conclusion of any judicial review of the Commission's order.
    
    
        
        (c) Substitution of copies.
         A true copy of a document may be substituted for any document in the record or any document retained pursuant to paragraph (b) of this section.