The National Rental Affordability Scheme may provide for and in relation to the following:
(a) the variation of an allocation in certain circumstances;
(b) the transfer of an allocation to another approved participant in certain circumstances;
(ba) the transfer of all allocations made to an approved participant to another approved participant or other approved participants in certain circumstances;
(bb) the transfer of an allocation to another rental dwelling in certain circumstances;
(c) the revocation of an allocation in certain circumstances;
(d) how such a variation, transfer or revocation is to be made.