There shall be a part of the register under Part IV of this Act in which rents may be registered for dwelling-houses which are let, or are, or are to be, available for letting, under a housing association tenancy.
In relation to that part of the register the following (and no other) provisions of this Act:—
(a) sections 67, . . . 67A, 70, 70A and 72.
(b) section 71, except subsection (3), and
(c) Schedules 11 . . . .
shall apply in relation to housing association tenancies, and in their application to such tenancies shall have effect as if for any reference in those provisions to a regulated tenancy there were substituted a reference to a housing association tenancy.
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A rent registered in any part of the register for a dwelling-house which becomes, or ceases to be, one subject to a housing association tenancy, shall be as effective as if it were registered in any other part of the register.