California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 54111

Each association shall, within 30 days after its incorporation, adopt for its government and management, a code of bylaws, not inconsistent with this chapter. The vote or written assent of shareholders or members that hold at least a majority of the voting power is necessary to adopt such bylaws and is effectual to repeal or amend any bylaws, or to adopt additional bylaws.

The power to repeal and amend the bylaws, and adopt new bylaws, may, by a similar vote, or similar written assent, be delegated to the board of directors, which authority may, by a similar vote, or similar written assent, be revoked.