Cal. Ed. Code § 88063.5
Notwithstanding Section 88063 or any other provision of law, in the case of a community college district that was formerly under the jurisdiction of governing boards of identical personnel for both the community college district and a unified district and that had a majority of its population within an incorporated city which had a population between 70,000 and 75,000 as of the 1950 census, and where the governing board, by affirmative vote of the majority of its members, made this article applicable to each of the districts individually and separately, the rights of persons employed in nonacademic positions shall continue in the same manner as if the separation had not occurred, except that the rights shall be limited to the district in which the person is employed on the day the action was taken by the governing board. For purposes of determining seniority, employment shall be deemed to have commenced as of the date of original employment in either the unified district or the community college district.
Ca. Educ. Code § 88063.5