2.911—Admissibility of restricted data or other national security information.
         A presiding officer shall not receive any Restricted Data or other National Security Information in evidence unless:
    
    
        
        (a) 
         The relevance and materiality of the Restricted Data or other National Security Information to the issues in the preceeding, and its competence, are clearly established; and
    
    
        
        (b) 
         The exclusion of the Restricted Data or other National Security Information would prejudice the interests of a party or the public interest.