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DHS Science and Technology Directorate

The Science and Technology Directorate (S&T) is a component within the United States Department of Homeland Security. DHS-S&T serves as the research and development arm of the Department as it fulfills its national security mission.

Agency overview

2003

United States

DHS Nebraska Avenue Complex, Washington D.C.

491 (2012)

$0.8 billion (2012)

The Science and Technology Directorate is led by the Under Secretary of Homeland Security for Science and Technology, who is appointed by the President of the United States with confirmation by the United States Senate. Dimitri Kusnezov is the Under Secretary.

Chemical Security Analysis Center at the in Maryland

Aberdeen Proving Ground

at Fort Detrick in Maryland

National Biodefense Analysis and Countermeasures Center

in Manhattan, New York

National Urban Security Technology Laboratory

Transportation Security Laboratory in

Atlantic City, New Jersey

near Orient, New York

Plum Island Animal Disease Center

in Manhattan, Kansas

National Bio and Agro-Defense Facility

The Under Secretary for Homeland Security Science and Technology currently administers a number of publicly available programs to promote independent development of homeland security technologies.


SAFECOM is the federal umbrella program designed to foster interoperability among the nation's public safety practitioners, so that they may communicate across disciplines and jurisdictions during an emergency.


The SAFETY Act provides liability protections that make it feasible for sellers of qualified antiterrorism technologies to introduce homeland security solutions to the marketplace.


Homeland Open Security Technology (HOST) is a five-year, $10 million program to promote the creation and use of open security and open-source software in the United States government and military.[1] In October 2011, the directorate won the Open Source for America 2011 Government Deployment Open Source Award for the program.[2]


Notable previous Under Secretaries include Dr. Tara O'Toole and Dr. Reginald Brothers.[3][4]


The directorate's Office of National Laboratories operates six facilities:[5]

Virtual USA

S&T's Website on DHS.gov

S&T organizational chart (May 16, 2022)

S&T 2021 Strategic Plan