If the county elections official deems a duplicate file of voter registration cards to be necessary for administrative purposes, the county elections official may prepare, upon the receipt in his or her office of each original affidavit of registration, a reproduction thereof in compliance with the following conditions:
(a)
The affidavit is photographed, microphotographed, or reproduced in a manner approved for permanent records by the National Bureau of Standards.
(b)
The device used to reproduce the affidavit is one that accurately reproduces the original thereof in all details.
(c)
The photographs, microphotographs, or other reproductions are placed in conveniently accessible files and provision is made for preserving, examining, and using the same.
Wherever in this code the term duplicate affidavit is used it shall be deemed to include the reproduced affidavit authorized by this section.
Any signature comparison required by this code may be made against these duplicates.