Social Security Disability Insurance (SSDI) provides benefits to nonelderly workers and their eligible dependents if the worker paid Social Security taxes for a certain number of years and is unable to perform substantial work due to a qualifying impairment. Chapter 1 provides an overview of the DI trust fund and its current financial outlook. Chapter 2 discusses the rules and processes used to determine eligibility for SSDI and SSI. It also explains how benefit amounts are computed, the types of non-cash benefits available to individuals who meet SSA's disability standards, and how each...