FEMA is responsible for responding to, recovering from and mitigating against disasters:

The primary mission of the Federal Emergency Management Agency is to reduce the loss of life and property and protect the Nation from all hazards, including natural disasters, acts of terrorism, and other man-made disasters, by leading and supporting the Nation in a risk-based, comprehensive emerge...

FEMA is responsible for responding to, recovering from and mitigating against disasters:

The primary mission of the Federal Emergency Management Agency is to reduce the loss of life and property and protect the Nation from all hazards, including natural disasters, acts of terrorism, and other man-made disasters, by leading and supporting the Nation in a risk-based, comprehensive emergency management system of preparedness, protection, response, recovery, and mitigation.


http://www.fema.gov/about/inde...

The Federal Emergency Management Agency (FEMA) is an agency of the United States Department of Homeland Security.

The purpose of FEMA is to coordinate the response to a disaster which has occurred in the United States and which has overwhelmed the resources of local and state authorities.

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The Federal Emergency Management Agency (FEMA) is an agency of the United States Department of Homeland Security.

The purpose of FEMA is to coordinate the response to a disaster which has occurred in the United States and which has overwhelmed the resources of local and state authorities.

The governor of the state in where the disaster has occurred must declare a state of emergency and formally request from the President that FEMA and the federal government respond to the disaster.

The only exception is when an emergency or disaster occurs on federal property or to a federal asset, for example, the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, in the 1995 bombing.Following the September 11, 2001 attacks, Congress passed the Homeland Security Act of 2002, which created the Department of Homeland Security (DHS) to better coordinate among the different federal agencies that deal with law enforcement, disaster preparedness and recovery, border protection and civil defense.

FEMA was absorbed into DHS as of 2003. As a result, FEMA became part of the Emergency Preparedness and Response Directorate of Department of Homeland Security,

Hurricane Katrina in 2005 demonstrated that the vision of further unification of functions and another reorganization could not address the problems FEMA had previously faced.

The "Final Report of the Select Bipartisan Committee to Investigate the Preparation for and Response to Hurricane Katrina", released February 15, 2006 by the U.S. Government Printing Office, revealed that federal funding to states for “all hazards” disaster preparedness needs was not awarded unless the local agencies made the purposes for the funding a “just terrorism” function.

Emergency management professionals testified that funds for preparedness for natural hazards was given less priority than preparations for counter terrorism measures. Testimony also expressed the opinion that the mission to mitigate vulnerability and prepare for natural hazard disasters before they occurred had been separated from disaster preparedness functions, making the nation more vulnerable to known hazards, like hurricanes. These issues continue to be debated, and have not been resolved with FEMA’s inclusion in Department Of Homeland Security.

Disaters that have FEMA have been refered to FEMA during the 00's are inregards to the followin Cat losses

1. Terrorist attacks on September 11, 2001
2. Southern Florida Hurricanes - 2004
3. Buffalo Snowstorm – 2006
4. Dumas, Arkansas Tornadoes - 2007
5. California wildfires - 2007
3. Hurricane Katrina – 2005