A tenancy remains an introductory tenancy until the end of the trial period, unless one of the events mentioned in subsection (5) occurs before the end of that period.
The "trial period" is the period of one year beginning with—
but this is subject to subsections (3) and (4) and to section 125A (extension of trial period by 6 months). .
Where the tenant under an introductory tenancy was formerly a tenant under another introductory tenancy, or a relevant assured shorthold tenancy , any period or periods during which he was such a tenant shall count towards the trial period, provided—
In subsection (3) "relevant assured shorthold tenancy" means—
and for these purposes "social housing" has the same meaning as in Part 2 of the Housing and Regeneration Act 2008.
Where there are joint tenants under an introductory tenancy, the reference in subsection (3) to the tenant shall be construed as referring to the joint tenant in whose case the application of that subsection produces the earliest starting date for the trial period.
A tenancy ceases to be an introductory tenancy if, before the end of the trial period—
A tenancy does not come to an end merely because it ceases to be an introductory tenancy, but a tenancy which has once ceased to be an introductory tenancy cannot subsequently become an introductory tenancy.
This section has effect subject to section 130 (effect of beginning proceedings for possession).