La. R.S. 13:4448

Prior to adjudicating the constitutionality of a statute of the state of Louisiana, the courts of appeal and the Supreme Court of Louisiana shall notify the attorney general of the proceeding and afford him an opportunity to be heard. The notice shall be made by certified mail. No judgment shall be rendered without compliance with the provisions of this Section; provided where the attorney general was not notified of the proceeding, the court shall hold adjudication of the case open pending notification of the attorney general as required herein.