Administrative Reviews When a staff determination or interpretation of the Illinois Pension Code or TRS rules is appealed, the Claims Hearing Committee of the Board of Trustees hears the matter, and the Board issues a written decision. Associated Documents Annuity Calculation - McGue - 2015 Annuity Calculation - Lester/Thornton Township High School District 205 - 2009 Annuity Calculation - Ralston – 1997