Rule 15.4B - INVOLUNTARY TERMINATION OF PARENTAL RIGHTS SERVICE(a) Where service is attempted by registered mail at the natural parent's last known address pursuant to Pa. O.C. Rule 15.6 and the post office's return indicates that service was not made, petitioner may petition the Court to order service by publication.(b) A petition for publication must outline efforts made by petitioner through postal authorities, relatives, mutual friends, or other means to locate the present address of the natural parents.(c) Where the Court orders service by publication, it shall be made in a newspaper of general circulation one (1) time in the area of the natural parent's last known address. Proof of publication must be submitted at the hearing on the petition for involuntary termination.(d) Where service of the hearing has been made by publication, the Decree Nisi shall be immediately published in the same newspaper of general circulation referred to in subparagraph (c) of this rule.Amended effective 3/1/2021; amended effective 1/1/2024.