24 C.F.R. § 576.104
ESG funds may be used to provide housing relocation and stabilization services and short- and/or medium-term rental assistance as necessary to help a homeless individual or family move as quickly as possible into permanent housing and achieve stability in that housing. This assistance, referred to as rapid re-housing assistance, may be provided to program participants who meet the criteria under paragraph (1) of the "homeless" definition in § 576.2 or who meet the criteria under paragraph (4) of the "homeless" definition and live in an emergency shelter or other place described in paragraph (1) of the "homeless" definition. The rapid re-housing assistance must be provided in accordance with the housing relocation and stabilization services requirements in § 576.105 , the short- and medium-term rental assistance requirements in § 576.106 , and the written standards and procedures established under § 576.400 .
24 C.F.R. §576.104