Louisiana Civil Code Tit. IV, Art. 3528. Formal validity of testamentary dispositions

A testamentary disposition is valid as to form if it is in writing and is made in conformity with: (1) the law of this state; or (2) the law of the state of making at the time of making; or (3) the law of the state in which the testator was domiciled at the time of making or at the time of death; or (4) with regard to immovables, the law that would be applied by the courts of the state in which the immovables are situated.