24E+W+SSection 89 of the Rent Act 1977 (which provides for the phasing of progression to a registered rent in the case of housing association tenancies) and Schedule 8 to that Act (phasing of rent increases: general provisions) shall cease to have effect except with respect to an increase in rent up to, or towards, a registered rent in relation to which the relevant date for the purposes of the said Schedule 8 falls before this Act comes into force.