I personally have no idea. US culture is rather averse to discussing matters of death so this is all new. My brief searching around looks like this is tied to h

I personally have no idea. US culture is rather averse to discussing matters of death so this is all new. My brief searching around looks like this is tied to however you purchase the plot and the terms set with the cemetery itself and if they expire, they just bury someone a foot or two above the previous plot owner after removing the headstone....