In a conveyance to two or more persons as joint tenants each joint tenant has a vested right of interment in the plot conveyed.

Upon the death of a joint tenant, the title to the plot held in joint tenancy immediately vests in the survivors, subject to the vested right of interment of the remains of the deceased joint tenant.

Cemetery property held in joint tenancy is exempt from the provisions of the Probate Code relating to proceedings for establishing the fact of death of a person whose death affects title to real property.

An affidavit by any person having knowledge of the facts setting forth the fact of the death of one joint tenant and establishing the identity of the surviving joint tenants named in the deed to any plot, when filed with the cemetery authority operating the cemetery in which the plot is located, is complete authorization to the cemetery authority to permit the use of the unoccupied portion of the plot in accordance with the directions of the surviving joint tenants or their successors in interest.

When there are several owners of a plot, or of rights of interment in it, they may designate one or more persons to represent the plot and file written notice of designation with the cemetery authority. In the absence of such notice or of written objection to its so doing, the cemetery authority is not liable to any owner for interring or permitting an interment in the plot upon the request or direction of any coowner of the plot.