Georgia Code Title 15. Courts § 15-11-424

(a) If a party to be served with a summons pursuant to Code Section 15-11-423 is within this state and can be found, the summons shall be served upon him or her personally as soon as possible and at least 72 hours before the adjudication hearing.

(b) If a party to be served is within this state and cannot be found but his or her address is known or can be ascertained with due diligence, the summons shall be served upon such party at least five days before an adjudication hearing by mailing him or her a copy by registered or certified mail or statutory overnight delivery, return receipt requested.

(c) If a party to be served is outside this state but his or her address is known or can be ascertained with due diligence, service of the summons shall be made at least five days before an adjudication hearing either by delivering a copy to such party personally or by mailing a copy to him or her by registered or certified mail or statutory overnight delivery, return receipt requested.

(d) Service of the summons may be made by any suitable person under the direction of the court.

(e) The court may authorize payment from county funds of the costs of service and of necessary travel expenses incurred by persons summoned or otherwise required to appear at the hearing on the petition seeking an adjudication that a child is in need of services.