21. For rule 48 substitute—
48.—(1) The person effecting notification must, within 7 days beginning with the date on which notification in accordance with this Part was given, file a certificate of notification which certifies—
(a)the date on which, and how, P was notified; and
(b)that P was notified in accordance with this Part.
(2) Subject to paragraph (3), the person effecting notification in accordance with this Part must in the certificate required by paragraph (1) describe the steps taken to enable P to understand, and the extent to which P appears to have understood, the information.
(3) Where the provisions of rule 40(4) apply, paragraph (2) does not apply.”.