51 Pa. Code § 25.1 – Wrongful use of the act.

Wrongful use of the act is established by one or more of the following elements:

(1) The filing of a frivolous complaint which is a complaint filed in a grossly negligent manner without basis in law or fact.
(2) The filing of a complaint without probable cause, primarily for a purpose other than reporting a violation of the act.
(3) Disclosing publicly or causing to be publicly disclosed the fact that an individual is the subject of a complaint or Commission investigation.

This section cited in 51 Pa. Code § 25.2 (relating to initiation of proceedings).