13.—(1) Where, on or after the commencement of this Order–
(a)a private tenancy is granted, and
(b)the contract of tenancy does not provide that the duration of the tenancy is to be for a term certain,
the tenancy shall take effect for a term certain of 6 months, beginning on the day on which the tenant is entitled to take possession of the dwelling-house.
(2) Nothing in this Article applies to a statutory tenancy.
14.—(1) A notice by a landlord or tenant to quit a dwelling-house let under a private tenancy shall not be valid unless it is given in writing not less than 4 weeks before the date on which it is to take effect.
(2) Paragraph (1) applies whether the private tenancy was granted before or after the commencement of this Order.