(a) Each agency shall provide for review of appeals by an official different from the official or officials designated to make initial denials.
(b) Each agency, upon a determination that it wishes to deny an appeal, shall send a copy of the records requested and of all correspondence relating to the request to the Assistant General Counsel, Research and Operations Division, Office of the General Counsel. When the volume of records is so large as to make sending a copy impracticable, the agency shall enclose an informative summary of those records. The agency shall not deny an appeal until it receives concurrence from the Assistant General Counsel, General Law Division, Office of the General Counsel.
(c) The Assistant General Counsel, General Law Division, Office of the General Counsel, shall promptly review the matter (including necessary consultation with the Department of Justice and coordination with the Office of Communications) and render all necessary assistance to enable the agency