In this Act "statutorily protected tenancy" means—
For the purposes of Part I of this Act a person who, under the terms of his employment, had exclusive possession of any premises other than as a tenant shall be deemed to have been a tenant and the expressions "let" and "tenancy" shall be construed accordingly.
In Part I of this Act "the owner", in relation to any premises, means the person who, as against the occupier, is entitled to possession thereof.
In this Act "excluded tenancy" and "excluded licence" have the meaning assigned by section 3A of this Act.
If, on or after the date on which the Housing Act 1988 came into force, the terms of an excluded tenancy or excluded licence entered into before that date are varied, then—
Any reference in subsection (5) above to a variation affecting the amount of the rent which is payable under a tenancy or licence does not include a reference to—