The commencement of Chapter 1 of Part 1 (which, in particular, has the effect that, on the commencement date, an existing tenancy becomes a section 4A assured tenancy) does not affect the continuation of an existing tenancy on and after the commencement date (as a section 4A assured tenancy that is subject to the other provisions of that Chapter).
Schedule 6 contains transitional provision.
In this section—
"commencement date" means the day on which Chapter 1 of Part 1 comes into force in accordance with section 145 (and accordingly where different days are appointed for different purposes in relation to that Chapter, a reference in this Act to the commencement date is a reference to the day on which that Chapter comes into force for the purposes of the tenancy to which the reference relates);
"existing tenancy" means an assured tenancy which is entered into before the commencement date;
"section 4A assured tenancy" means an assured tenancy to which section 4A of the 1988 Act (as inserted by section 1 of this Act) applies.