Unless otherwise provided, following any election or appointment and before any officer enters on the duties of his or her office, he or she shall take and subscribe the oath or affirmation set forth in Section 3 of Article XX of the Constitution of California.
Cal. Gov. Code § 1360
Oath of Office
Amended by Stats. 2017, Ch. 387, 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.