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Homeland Security

Department Components

The following list contains the components, directorates and offices with websites or webpages on DHS.gov that currently make up the Department of Homeland Security.

United States Citizenship and Immigration Services (USCIS)

United States Citizenship and Immigration Services (USCIS) secures America’s promise as a nation of immigrants by providing accurate and useful information to our customers, granting immigration and citizenship benefits, promoting an awareness and understanding of citizenship, and ensuring the integrity of our immigration system.

United States Customs and Border Protection (CBP)

United States Customs and Border Protection (CBP) is one of the Department of Homeland Security’s largest and most complex components, with a priority mission of keeping terrorists and their weapons out of the U.S. It also has a responsibility for securing and facilitating trade and travel while enforcing hundreds of U.S. regulations, including immigration and drug laws.

United States Coast Guard (USCG)

The United States Coast Guard is one of the five armed forces of the United States and the only military organization within the Department of Homeland Security. The Coast Guard protects the maritime economy and the environment, defends our maritime borders, and saves those in peril.

Federal Emergency Management Agency (FEMA)

The Federal Emergency Management Agency (FEMA) supports our citizens and first responders to ensure that as a nation we work together to build, sustain, and improve our capability to prepare for, protect against, respond to, recover from, and mitigate all hazards.

Federal Law Enforcement Training Center (FLETC)

The Federal Law Enforcement Training Center provides career-long training to law enforcement professionals to help them fulfill their responsibilities safely and proficiently.

United States Immigration and Customs Enforcement (ICE)

United States Immigration and Customs Enforcement (ICE), promotes homeland security and public safety through the criminal and civil enforcement of federal laws governing border control, customs, trade, and immigration.

Transportation Security Administration (TSA)

The Transportation Security Administration (TSA) protects the nation's transportation systems to ensure freedom of movement for people and commerce.

United States Secret Service (USSS)

The United States Secret Service (USSS) safeguards the nation's financial infrastructure and payment systems to preserve the integrity of the economy, and protects national leaders, visiting heads of state and government, designated sites, and National Special Security Events.

Management Directorate

The Management Directorate is responsible for Department budgets and appropriations, expenditure of funds, accounting and finance, procurement; human resources, information technology systems, facilities and equipment, and the identification and tracking of performance measurements.

National Protection and Programs Directorate (NPPD)

The National Protection and Programs Directorate (NPPD) works to advance the Department's risk-reduction mission. Reducing risk requires an integrated approach that encompasses both physical and virtual threats and their associated human elements.

Science and Technology Directorate (S&T)

The Science and Technology Directorate is the primary research and development arm of the Department. It provides federal, state and local officials with the technology and capabilities to protect the homeland.

Domestic Nuclear Detection Office (DNDO)

The Domestic Nuclear Detection Office works to enhance the nuclear detection efforts of federal, state, territorial, tribal, and local governments, and the private sector and to ensure a coordinated response to such threats.

Office of Health Affairs (OHA)

The Office of Health Affairs coordinates all medical activities of the Department of Homeland Security to ensure appropriate preparation for and response to incidents having medical significance.

Office of Intelligence and Analysis (I&A)

The Office of Intelligence and Analysis (I&A) is responsible for using information and intelligence from multiple sources to identify and assess current and future threats to the United States.

Office of Operations Coordination and Planning

The Office of Operations Coordination and Planning is responsible for monitoring the security of the United States on a daily basis and coordinating activities within the Department and with governors, Homeland Security Advisors, law enforcement partners, and critical infrastructure operators in all 50 states and more than 50 major urban areas nationwide.

Office of Policy

The Office of Policy is the primary policy formulation and coordination component for the Department of Homeland Security. It provides a centralized, coordinated focus to the development of Department-wide, long-range planning to protect the United States.

Last Published Date: August 15, 2014
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