FEMA and SBA Disaster Assistance for Individuals and Households: Application Processes, Determinations, and Appeals [Updated August 6, 2019] [open pdf - 1MB]
From the Summary: "The Small Business Administration's (SBA's) Disaster Loan Program and the Federal Emergency Management Agency's (FEMA's) Individual Assistance (IA) program are the federal government's primary sources of financial assistance to help individuals and households recover and rebuild following an incident. In many cases, disaster survivors need assistance from both programs in addition to other sources of assistance, including private insurance, state and local government assistance, and assistance from voluntary organizations."
CRS Report for Congress, R45238
Congressional Research Service: https://crsreports.congress.gov/