on the application of any registered owner of land held under separate certificates of title, or under one certificate, and delivering up of such certificate or certificates of title the registrar may issue to such owner a single certificate of title for the whole of such land, or several certificates each containing a portion of such land, in accordance with such application, and as far as the same may be done consistently with any regulations at the time being in force, respecting the certificates of land that may be included in one certificate of title; upon issuing of any such certificate of title said registrar shall endorse on the last previous certificate of title of such lands so delivered up a memorial, setting forth the occasion of such cancellation, and referring to the volume and folium of the new certificates of title so issued.
SOURCE: CC ‘1157.25.

§ 29128. Duplicate Certificates on Loss or Destruction of
Original.
In the event of a duplicate certificate of title being lost, mislaid, or destroyed, the owner may apply to the registrar for a certified copy of the original certificate of registration. If the registrar is satisfied that the applicant is the person named in the original certificate on file in the registrar’s office, and that the duplicate certificate has been lost, mislaid, or destroyed, he shall issue a certified copy of the original certificate to the applicant with the memorials and notations appearing upon the register, and shall note upon the certified copy: Owner’s certified copy, issued in place of lost (mislaid or destroyed, as the case may be) certificate, and such certified copy shall stand in place of, and have like effect as, the missing duplicate certificate.A certified copy of the certificate of title may be issued by the registrar for use as evidence, upon the receipt by him of an order therefor made by the court: provided, that such certified copy shall have written or stamped across the face thereof the words for use as evidence only. The issuance of such certified copy and the purpose thereof shall also be noted upon the original certificate by the registrar.
SOURCE: CC ‘1157.26.