Cal. Gov. Code § 22302
In the case of employees in positions covered by the retirement system set forth in subdivision (d) of Section 22009.1, the Teachers' Retirement Board shall conduct the referendum; if the referendum is authorized by the Legislature.
In the case of employees in positions covered by the retirement system set forth in subdivision (g) of Section 22009.1 the board shall authorize the referendum upon the request of the Regents of the University of California and the regents shall conduct the referendum.
In the case of employees in positions covered by the retirement system set forth in subdivision (l) of Section 22009.1, the board shall authorize the referendum upon the request of the governing body of a public agency, as defined by Section 22009.03.
Ca. Gov. Code § 22302