Subject to the following provisions of this section, in this Chapter "owner-occupier", in relation to a hereditament, means—
Subject to the following provisions of this section, in this Chapter "owner-occupier", in relation to an agricultural unit, means a person who—
and, at all times material for the purposes of paragraph (a) or, as the case may be, paragraph (b) has been entitled to an owner's interest in the whole or part of that unit.
In this Chapter "resident owner-occupier", in relation to a hereditament, means—
In this section—
"owner's interest", in relation to a hereditament or agricultural unit, means a freehold interest in it or a tenancy of it granted or extended for a term of years certain not less than three years of which remain unexpired on the date of service; and
"date of service", in relation to a hereditament or agricultural unit, means the date of service of a notice in respect of it under section 150.