12. The Registrar may dispose of—
(a) any document lodged with the Registrar in relation to an incorporated association that, at least 7 years previously, was dissolved or ceased to be registered or the incorporation of which was cancelled; or
(b) any document of which a reproduction or transparency has been incorporated in a register pursuant to section 9;
if, in the opinion of the Registrar, it is no longer necessary or desirable to keep the document.