Chief Executive Office, a part of the County of Los Angeles, is lead by a chief administrative officer, a post that was established under an ordinance in 1938. The office assists the board of supervisors in handling the administrative details of the county. It prepares budget and operational recommendations to the board of supervisors. Chief Executive Office monitors and controls countywide expenditures. The office specializes in analyzing and advocating legislation. It performs demographic and geographic research. Chief Executive Office additionally coordinates emergency preparedness activities and cost recovery efforts following major disasters. The office administers various insurance management programs. It provides centralized photographic and graphic arts services.