Tribal Homeland Security Act

Department of Homeland Security Reform Act of 2005 - Amends the Homeland Security Act of 2002 to require the Secretary of Homeland Security, acting through the Under Secretary for Policy (established by this Act), to conduct Quadrennial Homeland Security Reviews of the Department of Homeland Security (DHS).

Establishes in DHS an Office of Intelligence and Analysis headed by a presidentially appointed Chief Intelligence Officer. Transfers to the Chief Intelligence Officer the functions, personnel, assets, and liabilities of the Directorate for Information Analysis and Infrastructure Protection, hereby abolished.

Directs the Secretary to establish: (1) the Intelligence Through Employees Generating Resources for Analytical Leadership (INTEGRAL) Program; and (2) an intra-agency task force to study unclassified but security-relevant information.

Redesignates the Directorate of Emergency Preparedness and Response as the Directorate of Preparedness and Response (DPR).

Amends the Homeland Security Act of 2002 to establish a presidentially appointed Assistant Secretary for Preparedness, who shall perform the functions of the current Office for State and Local Government Coordination and Preparedness, with primary responsibility for the preparedness of the United States for acts of terrorism.

Gives the Under Secretary of Preparedness and Response primary responsibility for oversight and coordination with state, local, and regional authorities in the National Capital Region.

Establishes in the DPR a presidentially appointed Military Liaison to coordinate DPR activities with the efforts of the Secretary of Defense.

Amends the Homeland Security Act of 2002 to eliminate the Office for State and Local Government Coordination and Preparedness, the Office for Domestic Preparedness, and the Office of National Capital Region Coordination (transferring its functions to the DPR).

Establishes the Director (who shall be an Assistant Secretary in the DPR) and Deputy Director of the Federal Emergency Management Agency (FEMA).

Establishes in the DPR a Chief Medical Officer, who shall also be an Assistant Secretary.

Declares the sense of Congress urging merger in DHS of the Bureau of Customs and Border Protection (CPB) and the U.S. Immigration and Customs Enforcement (ICE).

Grants the DHS privacy officer authority to conduct investigations.

Eliminates the Under Secretary for Management and tranfers its functions to the Secretary.

Requires the Chief Financial Officer, the Chief Information Officer, and the Chief Human Capital Officer to exercise joint authority, with the component agency heads, over their respective counterparts in the DHS component agencies and entities.

Establishes a Business Transformation Officer, who shall develop an overarching management integration strategy for DHS.

Outlines whistleblower protections for DHS employees and other covered individuals.

Tribal Homeland Security Act - Establishes within DHS the Office of Tribal Security.

Establishes in the DPR a National Cybersecurity Office, headed by an Assistant Secretary for Cybersecurity and Telecommunications, as well as an Assistant Secretary for Physical Infrastructure Security, both appointed by the President.

Secure Handling of Ammonium Nitrate Act of 2005 - Authorizes the Secretary to regulate the handling and purchase of ammonium nitrate to prevent its misappropriation or use in an act of terrorism.