This covers "means-tested" benefits only - "Federal means-tested benefits currently include SSI (Supplemental Security income), TANF (Temporary Assistance for Needy Families), food stamps, Medicaid, and State Child Health Insurance Programs (SCHIP). State and local means-tested benefits vary by jurisdiction. Earned benefits such as Social Security retirement, Unemployment Compensation, and Workman¡¯s Compensation" are not included. The USCIS does not actively participate in any collection effort. http://www.uscis.gov/files/article/AffSuppAFM062706.pdf