At any time prior to the filing of the report to the Board required by § 89.171 (relating to filing of report) a hearing committee or special master, after notice to the participants, may reopen the proceeding for the reception of further evidence on its own motion, if the hearing committee or special master has reason to believe that conditions of fact or of law have so changed as to require, or that the public interest requires, the reopening of such proceeding.
204 Pa. Code § 89.252