(c) Certification process. Unless the Director directs otherwise, a ruling or order may not be submitted to the Director for interlocutory review unless the hearing officer, upon the hearing officer's motion or upon the motion of a party, certifies the ruling or order in writing. The hearing officer shall not certify a ruling or order unless:
- (1) The ruling or order would compel testimony of Bureau officers or employees, or those from another governmental agency, or the production of documentary evidence in the custody of the Bureau or another governmental agency;
- (2) The ruling or order involves a motion for disqualification of the hearing officer pursuant to § 1081.105(c)(2);
- (3) The ruling or order suspended or barred an individual from appearing before the Bureau pursuant to § 1081.107(c); or
(4) Upon motion by a party, the hearing officer is of the opinion that:
- (i) The ruling or order involves a controlling question of law as to which there is substantial ground for difference of opinion; and
- (ii) An immediate review of the ruling or order is likely to materially advance the completion of the proceeding or subsequent review will be an inadequate remedy.