Rapid Re-Housing is a relatively recent innovation in social policy that is an intervention designed to help those who are homeless. As described by the National Alliance to End Homelessness, Rapid Re-Housing is a subset of the Housing First approach to end homelessness. While many Housing First programs provide rental assistance, or help clients to access rent subsidies, Rapid Re-Housing programs always provide short-term rental assistance and services, with services ending once rental assistance terminates. As with the Housing First approach, the goals are to help people obtain housing quickly, increase self-sufficiency, and remain housed. The Core Components of rapid re-housing—housing identification, rent and move-in assistance, and case management and services-operationalize Housing First principles. While Housing First programs often serve many different target populations, including youth, families with children, and the chronically homeless, Rapid Re-Housing programs generally target people with low to moderate services needs. Housing First is much broader in its approach, with program designs developed to be flexible and responsive to the complexity of human needs.