Rev. & Tax. Code, § 109.5

“Machine-prepared roll” means an assessment roll prepared by electronic data-processing equipment, bookkeeping machine, typewriter, or other mechanical device, and such a roll may be displayed in printed form, on microfilm, or by any other means that would make it readily available to the public in a legible form. When so prepared by the assessor, the roll need not contain provision for tax extensions, but the contents thereof may be reproduced by the auditor with provision for tax extensions. Upon such reproduction of the assessment data, the document with provision for tax extensions shall constitute the roll without prejudice to the roll status of the document without such provision.