Operational and Support Components

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

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.

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.

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

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.

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

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

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.

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

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.

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.

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

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.

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

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

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.