From the Introduction: "On November 20, 2009, a final rule was published that implemented changes to 44 CFR [Code of Federal Regulations] §206.223 (a) (2) regarding how FEMA reimburses for sheltering and evacuation costs incurred outside of the area designated under a Presidential emergency or major disaster declaration. FEMA Recovery Policy RP9523.18, 'Host-State Evacuation and Sheltering Reimbursement', describes methods by which States outside of the designated area can seek reimbursement for evacuation and sheltering support. A host-State may seek reimbursement from FEMA for evacuation and sheltering support provided to evacuees from an impact-State in two ways: (1) through mutual aid agreements with the impact-State or (2) directly from FEMA Impact states may utilize mutual aid agreements to receive host-State evacuation and sheltering aid in accordance with Disaster Assistance Policy DAP9523.6, 'Mutual Aid Agreements for Public Assistance and Fire Management Assistance', dated August 13, 2007. This document (SOP9570.1, 'Direct Reimbursement for Host-State Evacuation and Sheltering Costs Standard Operating Procedure (SOP)') addresses direct reimbursement from FEMA."
Standard Operating Procedure 9570.1
Federal Emergency Management Agency: https://www.fema.gov/