To be creditable, specialized experience must have been equivalent to at least the GS-12 grade level in the Federal service performing ALL of the following: Administering complex Federal retirement and benefits programs, including FERS, CSRS, TSP, FEHB, FEGLI, disability retirement, and reemployed annuitant programs, in accordance with applicable laws, regulations, OPM guidance, and agency policies; Performing retirement eligibility determinations, annuity computations, retirement estimates, and retirement actions, while providing expert counseling on retirement options, survivor benefits, disability retirement, death-in-service benefits, health and life insurance continuation, and reemployed annuitant requirements; Serving as a senior technical advisor to employees, managers, and Human Resources staff by interpreting Federal retirement laws, regulations, and OPM guidance; resolving complex retirement and benefits issues; and coordinating with OPM and other Federal agencies to resolve retirement actions; and. Information includes the Federal Employees Retirement System (FERS), FERS-Revised Employees (FERS-RAE), FERS-Further Revised Annuity Employee (FERS-FRAE), Civil Service Retirement System (CSRS), Civil Service Retirement System-Offset (CS-Offset), the Federal Employees Group Life Insurance Program (FEGLI), Federal Employees Health Benefits Program (FEHB), Federal Dental and Vision Insurance Program (FEDVIP), Federal Flexible Spending Accounts (FSAFEDS), Federal Long care Insurance Program (FLTCIP) and the Savings Plan (TSP), and Social Security, Beneficiary, etc.