Notwithstanding any other provision of law, every employee who enters or reenters service with a contracting agency on and after January 1, 1992, shall immediately become a member of this system irrespective of any probationary period, if the employee would otherwise be eligible for membership. This system shall not exclude employees, or groups of employees, solely on the basis of their status as probationary employees.
Ca. Gov. Code § 20505