(2)Where, before the commencement of this Act, any premises have been lawfully sub-let either in whole or in part by the tenant, the tenant or the sub- tenant to whom the premises have been sub-let may, in the prescribed manner, give notice to the landlord of the creation of the sub-tenancy within six months of the commencement of this Act, and notify the termination of such sub-tenancy within one month of such termination.
