8.15—Denial of charges and right to hearing.
         In every instance where the respondent has requested a hearing on a charge which is denied, or on a penalty set by the disciplinary committee under  § 8.14(a)(2), he shall be given an opportunity for a hearing in accordance with the requirements of  § 8.17. The exchange rules may provide that, except for good cause, the hearing shall be concerned only with those charges denied and/or penalties set by the disciplinary committee under  § 8.14(a)(2) for which a hearing has been requested.