In section 21 of the Housing Act 1988 (recovery of possession on expiry or termination of assured shorthold tenancy) after subsection (1) insert—
The amendments made by this section do not apply in relation to an assured shorthold tenancy that—
was granted before the day on which this section comes into force, or
came into being by virtue of section 5 of the Housing Act 1988 (periodic tenancy arising on termination of fixed term) on the coming to an end of an assured shorthold tenancy within paragraph (a).