Capital intensive investment projects and businesses identified by the MECF as potentially harmful should present an ESIA, with the Department of Environmental Conservation being part of the proposal assessment team. The investor is not allowed to carry out business causing environmental pollution, including water or air pollution, on the land he is entitled to lease or use - a provision also mentioned in Notification 39/2011. Deforestation rates varied over time between 2% in 1975-89, 7% in 1989-98 and 3.2% in 1998-2006. Fire wood production, illegal logging and agricultural land expansion constitute the main sources of deforestation. The permanent forest estate consists of reserved forests, protected public forests and protected forests (Table 9.10). The first two categories are established for both conservation and production purposes and can be categorised as community forest.