7. (1) No interment shall take place in a church or chapel in use for religious purposes, without a special authorization granted by the superior ecclesiastical or diocesan authority.
(2) When such permission is granted, the body must be placed in a coffin containing at least 2,50 kg of chloride of lime, or quick-lime, and such coffin must be placed in a grave and covered with at least 1,25 m of earth or enclosed in masonry at least 45 cm thick if in stone and at least 50 cm thick if in brick, both brick and stone being well covered with cement.
(3) This section shall not affect the powers granted to any municipal corporation by its charter.