The Wildlife (Protection) Act, 1972 has been amended in 2006, and a separate chapter (Chapter IVB) has been provided, which interalia, provides for constituting the National Tiger Conservation Authority (NTCA), its powers and functions, reporting requirements, constitution of State level Steering Committees, preparation of Tiger Conservation Plan, explanation regarding the core or critical tiger habitat and the buffer or peripheral areas of a tiger reserve and establishment of the Tiger Conservation Foundation. The said amendment came into force with effect from 4th of September, 2006.