5(1)Any reference in this Part of this Schedule to the relevant date shall be construed in accordance with this paragraph.E+W
(2)Where the tenancy referred to in paragraph 1(1)(a) above was granted, renewed or continued for a term of years certain exceeding 7 years and that term has not expired when the assignment takes effect, the relevant date is the date of the expiry of that term.
(3)In any other case, the relevant date is the date of the expiry of 7 years from the commencement of the term, or, as the case may be, the renewal or continuance of the term in respect of which the premium was paid.
(4)For the purposes of this paragraph—
(a)a term of years shall be treated as certain notwithstanding that it is liable to determination by re-entry or on the happening of any event other than the giving of notice by the landlord to determine the term; and
(b)a term of years determinable by the landlord giving notice to determine it shall be treated as a term of years certain expiring on the earliest date on which such a notice given after the date of the assignment would be capable of taking effect.