(1) In the case of the termination of the guardianship or of the office of guardian, the provisions of sections 1698a and 1698b apply accordingly.
(2) After the termination of their office, the guardian is to return the certificate of appointment to the family court. In the cases governed by sections 1791a and 1791b, the order of the family court is to be returned, and in the case governed by section 1791c the certificate on the commencement of the guardianship.