Since both the central and state governments are involved, both shall have to make rules. The central rules have already been finalized, and a set of model rules for the states have been circulated by the centre to the states. The states can either accept the model rules as circulated or make appropriate changes in them. Finally, the central government has to place the rules in the Parliament, and the states in their respective legislatures. The rules can be modified by the centre or the states as and when necessary.