Section 403(B) of the Internal Revenue Service (IRS) Code authorizes full-time and part-time employees (who minimally work 20 hours per week) of Old Dominion University to participate in a payroll deduction, pre-tax, tax deferred supplemental retirement plan known as a Tax Sheltered Annuity. TSA's provide employees with a retirement savings plan to supplement other retirement programs such as the Virginia Retirement System (VRS), Optional Retirement Plan (ORP) and /or Social Security.