(a) If the address of the parent or guardian is known, by sending the parent or guardian a copy of the summons by registered or certified mail with a return receipt to be signed by the addressee only.
(b) By personal service outside the state.
(2) Service as provided in this section and ORS 419C.309 shall vest the court with jurisdiction over the parents or guardian in the same manner and to the same extent as if the person served were served personally within this state. [1993 c.33 §206; 1993 c.546 §75]