7 Pa. Code § 179.53 – Commission hearings.

(a) Unless the Commission hears the matter directly, all matters shall be assigned to a presiding officer or other duly qualified person to serve as a presiding officer in the particular proceeding.
(b) Hearings will be public unless a party invokes protection afforded to the party under § 173.8 (relating to confidential information).
(c) Matters proceeding under the provisions of § 179.52(b) (relating to nature of Commission hearings) may provide for:
1. (1) Receipt of sworn testimony, including testimony from the original matter before the Bureau Director or Commission staff.
2. (2) Receipt of all relevant oral or documentary evidence used in the original determination or decision.
3. (3) Opportunity to be heard.
4. (4) A complete evidentiary record, including other pleadings, motions or briefs submitted.
(d) Unless required by this part or authorized by law, a party may not engage in an ex parte communication with the Commission or the presiding officer.
(e) Subsections (a)—(d) supersede 1 Pa. Code § § 35.121—35.126 (relating to hearing).