Summary: A recent GAO study (GAO/RCED-99-49, Feb. 1999) identified 50 federal programs run by eight agencies that either are specifically targeted to the homeless or are nontargeted and therefore available to poor people in general, including those who are homeless. GAO found that both the targeted and nontargeted programs provide an array of services, such as housing, health care, job training, and transportation. In some cases, programs run by more than one agency offer the same type of service. Given the multiple agencies and the large number of programs that can potentially serve the homeless, GAO believes that coordination among federal agencies and the evaluation of programs' effectiveness are essential to ensure that the programs are cost-effective. Most agencies that administer targeted programs for the homeless have identified crosscutting responsibilities related to homelessness, but few have tried the more challenging task of describing how they expect to coordinate their efforts with those of other agencies or develop common outcome measures. GAO also found that although most federal agencies have established process or output measures for the services they provide to the homeless through their targeted programs, they have not consistently developed results-oriented and outcome measures for homelessness in their plans. This testimony also describes ongoing GAO work in the following areas: (1) state and local efforts to integrate and evaluate programs for the homeless, (2) the use of grants under the supportive housing program to deliver services to the homeless, (3) programs that serve homeless veterans, and (4) barriers to obtaining services.