Alameda County Employees' Retirement Association is a public pension fund based in Oakland, California. Established in 1948 by the Alameda County Board of Supervisors, ACERA is the retirement pension plan for public employees in Alameda County, California, and the persons who work for some of the county's public employers. The mission of the pension is to provide members and employers with flexible, cost-effective, participant-oriented benefits through prudent investment management and member services. The assets are managed by the board of retirement.