31. Cancellation of title documents
On creating a folio on a primary application, the Registrar —
(a) may cancel all prior title documents or may return them to the person from whom the Registrar received them;
(b) shall not destroy the documents without the consent of the Board; and
(c) shall in all events maintain copies of all title documents registered or lodged with the Registrar for not less than 6 years.