In section 16 of the [1977 c. 42.] Rent Act 1977 (tenancy not protected if interest of landlord belongs to housing co-operative) for the words from " within the meaning of section 27 " to the end substitute " within the meaning of section 27B of the Housing Act 1985 (agreements with housing co-operatives under certain superseded provisions) and the dwelling-house is comprised in a housing cooperative agreement within the meaning of that section ".