The CARE Act directs the federal government's Comptroller General to conduct a comprehensive review of all federal homelessness programs and submit a detailed report to Congress within one year of the bill's enactment. The report must assess how effectively each federal agency's homelessness program works, including a cost-benefit analysis showing how many people are served, what services are provided, how much money is spent and whether funds go unused, and what happens to participants in terms of housing stability, employment, criminal justice involvement, and healthcare access. The legislation also requires the report to identify which programs produce the best long-term results, highlight any weaknesses or inefficiencies, recommend the most effective policies for reducing homelessness, and address workforce shortage problems among homelessness service providers. Additionally, the report must include recommendations for improving how these programs are managed, evaluated, and held accountable, as well as suggestions for upgrading data systems used to track program outcomes. The bill does not appropriate specific funding but establishes a mandate for a government-wide audit aimed at making federal homelessness efforts more efficient and effective.