(1) The maintenance and renewal costs of the parts and facilities used by a single building property shall be charged to the building maintenance fund and its value-added part; Among them, if a property has more than two units, the maintenance and renewal costs of the parts and facilities used by each unit shall be charged in the maintenance fund and its value-added part of the unit property; (2) The maintenance and updating expenses of XXX old parts and XXX old facilities and equipment in the property management area shall be charged in the maintenance fund and its value-added part of the whole property management area.