Cal. Health & Safety Code § 41355

For the purpose of, but not limited to, retirement benefits, salary rates, seniority, and all fringe benefits, all time of employment with the Antelope Valley Air Pollution Control District immediately prior to employment with the Antelope Valley district, and any time of employment immediately prior thereto with the county, a county district, or both, whose authority, functions, and responsibilities have been assumed by the Antelope Valley Air Pollution Control District, shall be considered time of employment with the Antelope Valley district. Upon transfer to the Antelope Valley district, employees shall retain all of their accumulated sick leave, vacation, and retirement benefits.