Ground burial is still the most common form of disposition in New Jersey, however cremation is rapidly closing the gap with each year's passing. Ground burial involves the lowering of the casket into a grave that can be covered with at least four feet of earth.
Sometimes the casket is placed in a burial vault. A burial vault (outer burial container) is a concrete box that surrounds a casket in a grave. The vault prevents gravesite damage caused by the weight or pressure of machinery used in cemeteries and natural forces.
New Jersey law does not require the use of burial vaults, but some cemeteries however may require one.