37 Pa. Code § 197.17
No ex parte communications shall occur between a party or a person acting on behalf of a party and a board member or employe of the Hearing Board after the filing of a Notice of Appeal under § § 197.34 or 197.84 (relating to notice of appeal; or notice of appeal and answer).
The provisions of this § 197.17 adopted May 1, 1981, effective May 2, 1981, 11 Pa.B. 1455.