Labor Code section 17

“Signature” or “subscription” includes mark when the signer or subscriber can not write, such signer’s or subscriber’s name being written near the mark by a witness who writes his own name near the signer’s or subscriber’s name; but a signature or subscription by mark can be acknowledged or can serve as a signature or subscription to a sworn statement only when two witnesses so sign their own names thereto.

Source: Section 17, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=LAB§ionNum=17.­ (updated Jan. 1, 1937; accessed Jun. 25, 2025).

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Verified:
Jun. 25, 2025

§ 17's source at ca​.gov