The Homeless Emergency Assistance and Rapid Transition to Housing Act of 2009 (HEARTH Act), enacted into law on May 20, 2009, consolidates three of the separate homeless assistance programs administered by HUD under the McKinney-Vento Homeless Assistance Act into a single grant program, and revises the Emergency Shelter Grants program and renames it the Emergency Solutions Grants program. The HEARTH Act also codifies in law the Continuum of Care planning process, a longstanding part of HUD's application process to assist homeless persons by providing greater coordination in responding to their needs. The HEARTH Act also directs HUD to promulgate regulations for these new programs and processes. This interim rule focuses on regulatory implementation of the Continuum of Care program, including the Continuum of Care planning process. The existing homeless assistance programs that comprise the Continuum of Care program are the following: the Supportive Housing program, the Shelter Plus Care program, and the Moderate Rehabilitation/Single Room Occupancy (SRO) program. This rule establishes the regulations for the Continuum of Care program, and, through the establishment of such regulations, the funding made available for the Continuum of Care program in the statute appropriating Fiscal Year (FY) 2012 funding for HUD can more quickly be disbursed, consistent with the HEARTH Act requirements, and avoid any disruption in current Continuum of Care activities.