The provisions of this Chapter shall not apply to the following:
(1) A cemetery operated under the authority and regulation of the board.
(2) An unmarked burial site that is covered under the authority and regulation of the division or Chapter 10-A of Title 8 of the Louisiana Revised Statutes of 1950.
(3) Normal cleaning of grave spaces and grounds maintenance.
(4) Grave spaces within abandoned cemeteries that are less than fifty years old.