Cal. Code Regs. tit. 2 § 152
A preferred limited term list may be established for any class, containing the names of limited term employees who have served satisfactorily in positions recurring seasonally in a given state agency and who have been recommended by the appointing power for inclusion on such list. Such preferred limited term list shall be established to correspond to the same geographical, organizational, or functional subdivisions of state agencies as may be observed in establishing the departmental reemployment lists for the same class. Names shall be included on the preferred limited term list in the relative order of the original examination ratings of the eligibles. In filling limited term vacancies in a given state agency, the preferred limited term list for that agency shall be given preference over the eligible list but not over any other employment list. The name of any eligible included on the preferred limited term list may be continued on such list after the abolishment of the eligible list from which the eligible was originally certified; but under no circumstances and at no time shall any person be certified from the preferred limited term list to a permanent position or be permitted to acquire permanent status as a result of certification and appointment from any such list.
Cal. Code Regs. Tit. 2, § 152