116. The final cover at least 30 cm thick must be made up of earth, clay or soil consisting of various materials that reduce water infiltration. The nature of the material of the cover must be conducive to the regrowth of vegetation. An impermeable synthetic membrane or a membrane consisting of other materials having similar characteristics may also be used to reduce water infiltration. Once covered, the landfill must have a slope of not less than 2% and not more than 30%.
A vegetation cover must be established and maintained; shrub or tree cover may also be added to the vegetation cover however, without damaging the final cover. Holes, subsidence and fissures must be filled in or repaired until the soil has been fully stabilized.