55 Pa. Code § 2390.173
The provisions of this §2390.173 issued under sections 201(2), 403(b), 403.1(a) and (b), 911 and 1021 of the Human Services Code (62 P.S. §§ 201(2), 403(b), 403.1(a) and (b), 911 and 1021); and section 201(2) of the Mental Health and Intellectual Disability Act of 1966 (50 P.S. § 4201(2)).