The bauxite and alumina companies rehabilitate mined-out land by following a four-step method. The mined-out area is first reshaped and the top-soil that was first stripped off to prepare for mining is replaced. The area is then restored by planting the reclaimed area with pasture grasses, primarily to prevent erosion. After restoration the area is inspected by officers from the Commissioner of Mines, the JBI, the Ministry of Agriculture, and the Forestry Department. If the area meets the standard, a certificate of compliance is issued. Once the mined-out land has been certified, it can then be used for farming, housing, community centers, schools or for light industrial building sites.