La. Stat. tit. 9 § 204
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
An officiant, other than a judge or justice of the peace, may perform marriage ceremonies only after he registers to do so by depositing with the clerk of court of the parish in which he will principally perform marriage ceremonies, or, in the case of Orleans Parish, with the office of the state registrar of vital records, an affidavit stating his lawful name, denomination, and address.
La. R.S. § 9:204