California Code, Government Code - GOV § 20469

If after receiving the approximate contribution quotation the governing body intends to approve the proposed contract, it shall adopt a resolution giving notice of that intention.  The resolution shall contain a summary of the major provisions of the proposed retirement plan.  The contract shall not be approved unless an election has been held to permit the employees proposed to be included in this system to express by secret ballot their approval or disapproval of the retirement proposal.  Prior to the election each governing body shall be furnished with a schedule of rates of contribution of members, which shall be made available by the governing body to each employee proposed to be included in this system.  The ballot at the election shall include the summary of the retirement plan as set forth in the resolution.  The election shall be conducted in the manner prescribed by the governing body which shall be such as to permit the firefighters, the police officers, the county peace officers, and the other employees proposed to be included in this system to express separately their approval or disapproval.