 Once registered by the National Native Title Tribunal (NNTT) as required by the "Native Title Act 1993", they are technically known as registered native title bodies corporate (RNTBCs).It is at this point that their statutory obligations under the "Native Title Act 1993" and the "Native Title (Prescribed Bodies Corporate) Regulations 1999" are triggered.In some instances, native title claim groups will create a new organisation whose sole purpose is to act as an RNTBC.