Sch SEVENTH para 1
The Commission shall ascertain in relation to every chancel or other ecclesiastical building for the repair of which liability attached to the ownership of tithe rentcharge agreed or awarded on the original commutation of tithes under the Tithe Acts— (a) the rentcharges in respect of which such liability attached and the aggregate amount of those rentcharges; (b) which, if any, of those rentcharges was or were redeemed under the Tithe Acts or ceased before the appointed day to be subject to such liability, and the amount, or the aggregate amount, as the case may be, of any such rentcharges; and (c) the identity and the aggregate amount (in this Part referred to as “ the apportionable amount of rentcharge liability ”) of the residue of those rentcharges.