The "Colorado Children's Budget 2012" provided detailed information on appropriations and sources of financing for programs that help children across four domains: early childhood development and learning, health, education, and support services. This report dives deeper into one of the issues that surfaced in that report. The "Colorado Children's Budget 2012" found that during the last five years, appropriations for programs supporting children increased, but not enough to keep up with inflation and child population growth. Human Services programming is dependent to a great extent on federal funds, and the "Colorado Children's Budget 2011" raised concerns regarding declines in federal funding, both actual and potential. This brief explains changes in funding levels for the federal "Temporary Assistance for Needy Families" (TANF) block grant, one of the more important sources of support for low-income families with children. It also explains how the TANF block grant affects a range of programs in Colorado, most notably, Colorado Works and the Colorado Child Care Assistance Program (CCCAP). [See: the "Colorado Children's Budget 2012" report at ED538788, and the 2011 report at ED538789.]