Supplemental Security Income (SSI) is a critical supplemental program to the Social Security system that provides modest financial assistance for people who are unable to work enough to meet their basic needs. Examples of older adults who may qualify for SSI include an 80-year-old low-income retired couple with unexpected medical costs who are facing homelessness, a 50-year-old person who is blind, with no savings, and a 70-year-old single woman with little to no Social Security benefits. The program is a key anti-poverty program, but its outdated rules and requirements keep out many of the people it is supposed to help.Justice in Aging educates advocates on how to navigate the Social Security Administration to help their older adult clients qualify and retain SSI benefits. Our federal and state-based SSI advocacy aims to update and improve the rules of the program so that the people who need the vital assistance SSI provides are able to access the program.