A licensee may not undertake or continue a professional relationship with a client/patient, supervisee or student when the objectivity or competency of the licensee is, or could reasonably be expected to be, impaired due to mental, emotional, physiological, pharmacological or substance abuse conditions. If such a condition develops after a professional relationship has been initiated, the licensee shall terminate the professional relationship in an appropriate manner and shall, either himself or through an appropriate designee, notify the client/patient of the termination in writing and assist the client/patient in obtaining services from another professional.
49 Pa. Code § 47.75