Congressional Budget Office Cost Estimate: S. 1777, Katrina Emergency Assistance Act of 2005 [open pdf - 17KB]
From the Summary: "The Federal Emergency Management Agency (FEMA) provides assistance to individuals affected by a major disaster by providing housing, food, and other basic needs for survival (known as direct assistance), and by providing cash payments to meet needs that insurance companies and other aid programs do not cover. FEMA also provides disaster unemployment assistance (DUA) to people who are not covered by other unemployment compensation programs. Under current law, direct assistance to individuals is limited to 18 months following the disaster, the amount of cash assistance is limited to $26,200, and unemployment benefits are limited to 26 weeks. S. 1777 would expand FEMA's authority to help individuals affected by Hurricane Katrina by allowing the President to waive the limitations on direct and financial assistance and by providing 13 additional weeks of unemployment benefits."
Congressional Budget Office: https://www.cbo.gov/