The ballots may contain printed code marks or punched holes that may be used for placing the ballots in correct reading position in the counting devices. The code marks or punched holes shall not be used in any way that will reveal the identity of the voters voting the ballots.
Cal. Elec. Code § 13243
Vote Tabulating Devices
Enacted by Stats. 1994, Ch. 920, Sec. 2.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.