La. Stat. tit. 8 § 805
Subject to the approval of the cemetery authority, any cemetery space in any cemetery may be conveyed by the owner or owners, by proper instrument in a form approved by the cemetery authority, or such conveyance may be so provided in the last will and testament of the owner to the cemetery authority in perpetual trust for its preservation as a place of interment and shall thereafter remain forever inalienable by act of the parties. The right to use the cemetery space as a place of interment of the dead of the family of the owner and his descendants shall descend from generation to generation, unless the act of conveyance in trust provides that interments in the space shall be confined to the remains of specified persons, in which case the space shall be forever preserved for the remains of the persons so specified and shall never be used for any other purpose.
La. R.S. § 8:805