Formal investigative proceedings conducted pursuant to this subpart are confidential and, unless otherwise ordered or permitted by the Board, or required by law, the entire record of any formal investigative proceeding, including the order of investigation authorizing the proceeding, the transcripts of such proceeding, and all documents and information obtained by the designated representative(s) during the course of the formal investigative proceeding will be confidential. If the Board issues a notice of charges or otherwise initiates an administrative (adjudicatory) hearing, disclosure of documents and information obtained by the Board's designated representative(s) during the course of the formal investigative proceeding will be governed by the Uniform Rules and the Board Local Rules Supplementing the Uniform Rules (subparts A and B of this part).