La. Child. Code art. 1204
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
If a parent upon whom service is required under Article 1202 does not reside within this state, service shall be made by registered or certified mail, return receipt requested, postage prepaid and properly addressed to the address indicated in the petition not less than thirty days prior to commencement of the hearing on the petition.
La. Ch.C. § 1204