1B
Where a tenancy granted so as to become terminable by notice after a death, a marriage or the formation of a civil partnership —
(a) is (apart from this section) a long tenancy in accordance with section 3(1) below, but
(b) was granted before 18th April 1980 or in pursuance of a contract entered into before that date,
then (notwithstanding section 3(1)) the tenancy shall be a long tenancy for the purposes of this Part of this Act only so far as this Part has effect for conferring on any person a right to acquire the freehold of a house and premises.