La. Code Civ. Proc. art. 855.1
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
All civil actions alleging that a law is unconstitutional shall be in writing and be brought in an ordinary proceeding. The pleading shall be served upon the attorney general of the state in accordance with Article 1314. Upon proper service, the attorney general shall have thirty days to respond to the allegations or represent or supervise the interests of the state.
La. C.P. § 855.1