51 Pa. Code § 63.2
(d) The Commission, through its Executive Director, may initiate an investigation and hold a hearing concerning alleged negligent or unintentional violations of section 13A07 of the act by a lobbyist, lobbying firm or principal, in accordance with sections 1107 and 1108 of the Ethics Act (relating to powers and duties of commission; and investigations by commission) and, to the extent applicable, the related provisions in § § 21.1—21.3, 21.5 and 21.21—21.27.