Calculating Your SBCERA Benefit. SBCERA offers several resources to assist you in calculating your future benefit.Eligible employees working at least 40 hours per pay period are automatically members of the San Bernardino County Employees' Retirement Association. The maximum lifetime retirement benefit for which you are eligible. This publication provides instructions for completing the CalPERS. Need help planning for retirement? Find a qualified retirement planner in San Bernardino, CA. Get advice on 401k, IRA, and other retirement plans. Eligibility for Retirement. Deferred Compensation Retirement Plan and the Retirement Medical Trust ("RMT") Plan of San Bernardino. County (collectively, the "Plans").