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  2. About DHS
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  4. Operational and Support Components

Operational and Support Components

A listing of all Operational and Support Components that currently make up the Department of Homeland Security.

  • U.S. Citizenship and Immigration Services (USCIS)

    USCIS is the federal agency that oversees lawful immigration to the United States.

  • United States Coast Guard (USCG)

    USCG is the only military organization within DHS and protects the maritime economy and the environment, defends our maritime borders, and saves those at risk.

  • United States Customs and Border Protection (CBP)

    CBP's priority mission is to keep terrorists and their weapons out of the U.S. CBP also secures and facilitates trade and travel while enforcing regulations, including immigration and drug laws.

  • Cybersecurity and Infrastructure Security Agency (CISA)

    CISA leads the national effort to understand, manage, and reduce risk to our cyber and physical infrastructure.

  • Federal Emergency Management Agency (FEMA)

    FEMA supports our citizens and first responders 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)

    FLETC provides career-long training to law enforcement professionals to help them fulfill their responsibilities safely and proficiently.

  • United States Immigration and Customs Enforcement (ICE)

    ICE promotes homeland security and public safety through the criminal and civil enforcement of federal laws governing border control, customs, trade, and immigration.

  • United States Secret Service (USSS)

    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.

  • Transportation Security Administration (TSA)

    TSA protects the nation's transportation systems to ensure freedom of movement for people and commerce.

  • Management Directorate

    The Management Directorate is responsible for budget, appropriations, expenditure of funds, accounting and finance; procurement; human resources and personnel; information technology systems; facilities, property, equipment, and other material resources; providing biometric identification services; and identification and tracking of performance measurements relating to the responsibilities of the Department.

  • Science and Technology Directorate (S&T)

    S&T 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.

  • Countering Weapons of Mass Destruction Office (CWMD)

    CWMD works to prevent attacks against the United States using a weapon of mass destruction (WMD) through timely, responsive support to operational partners.

  • Office of Intelligence and Analysis

    The Office of Intelligence and Analysis helps the Homeland Security Enterprise with the timely intelligence and information it needs to keep the homeland safe, secure, and resilient.

  • Office of Homeland Security Situational Awareness (OSA)

    OSA provides operations coordination, information sharing, situational awareness, common operating picture, and executes the Secretary's responsibilities across the homeland security enterprise.

  • Office of Health Security (OHS)

    OHS is the principal medical, workforce health and safety, and public health authority for DHS.

  • Ombudsman Offices

    An ombudsman analyzes, reports on, and raises complaints, concerns, and recommendations to the appropriate agency for resolution. This work is done with a commitment to neutrality, independence, and confidentiality. The ombudsman offices are separate and distinct from the agencies they oversee.

Last Updated: 10/23/2023
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