The 15 Emergency Support Functions are the federal government’s organizing system for delivering disaster help, grouping federal capabilities into functional areas so specialized assistance can reach state and local governments through a coordinated structure. Each function has a designated lead agency and covers a distinct slice of response work, from transportation and firefighting to public health, energy restoration, and public information.
Where ESFs Come From
Emergency Support Functions sit inside the National Response Framework (NRF), the guiding document for how the United States responds to disasters and emergencies of all types. The NRF aligns roles across federal, state, local, tribal, and territorial governments along with private sector and nonprofit partners, and the ESFs are the coordinating structures within it that group federal interagency support.1Federal Emergency Management Agency. National Response Framework
ESFs apply to both Stafford Act declared disasters and non-Stafford Act incidents where federal coordination is still needed.2Federal Emergency Management Agency. Emergency Support Function Annexes Introduction The current NRF also uses Community Lifelines, categories of critical services like food, water, shelter, health, and communications that must be stabilized during any disaster. Lifelines work alongside ESFs rather than replacing them: ESFs describe how agencies organize, while lifelines describe what communities need restored.3Federal Emergency Management Agency. Community Lifelines Implementation Toolkit
Each ESF has a primary agency that leads coordination and support agencies that contribute expertise and personnel. Some functions share leadership. ESF #10, for example, is coordinated by either the Environmental Protection Agency or the U.S. Coast Guard depending on the type of incident.
The 15 Emergency Support Functions
ESF #1 — Transportation
Led by the Department of Transportation. ESF #1 manages transportation systems and infrastructure during incidents, covering aviation, maritime, surface, railroad, and pipeline transportation. A common misconception is that ESF #1 moves people and supplies. It does not. It monitors damage to transportation networks, identifies temporary alternatives that other agencies or the private sector can implement, and coordinates restoration of transportation infrastructure.4Federal Emergency Management Agency. Emergency Support Function 1 – Transportation Annex The actual movement of evacuees or goods falls to other agencies and ESFs.
ESF #2 — Communications
ESF #2 supports restoration of communications infrastructure, coordinates communications for response efforts, and helps get critical information to emergency management decision makers. That includes working with telecommunications and information technology companies to repair damaged systems and ensuring that emergency responders can communicate across agencies.5Federal Emergency Management Agency. Emergency Support Function 2 – Communications Annex
ESF #3 — Public Works and Engineering
Led by the Department of Defense through the U.S. Army Corps of Engineers. ESF #3 delivers engineering expertise and construction management during disasters. Corps personnel assess damage to public infrastructure, execute emergency contracts for life-saving services, provide engineering and real estate support, and manage emergency repair of damaged public facilities. This ESF also oversees FEMA’s Public Assistance Program, which funds the rebuilding of public infrastructure after disasters.6Federal Emergency Management Agency. Emergency Support Function 3 – Public Works and Engineering Annex
ESF #4 — Firefighting
ESF #4 provides federal support for detecting and suppressing wildland, rural, and urban fires that result from or coincide with a broader incident requiring a coordinated national response. It mobilizes federal firefighting resources and coordinates with state, tribal, and local fire agencies.7Federal Emergency Management Agency. Emergency Support Function 4 – Firefighting Annex
ESF #5 — Information and Planning
ESF #5 is the coordination hub for incident management and response. Its scope includes issuing mission assignments, managing resources and staffing, developing incident action plans, and overseeing financial management of the federal response.1Federal Emergency Management Agency. National Response Framework This is the function that keeps the other ESFs organized and on the same page.
ESF #6 — Mass Care, Emergency Assistance, Temporary Housing, and Human Services
ESF #6 coordinates life-sustaining resources and essential services when survivors’ needs exceed what local and state governments can handle. Its four core areas are mass care (sheltering, feeding, distributing emergency supplies, and reunifying families), emergency assistance (managing volunteers and donations, supporting evacuations, and caring for household pets and service animals), temporary housing, and human services.8Federal Emergency Management Agency. Emergency Support Function 6 – Mass Care, Emergency Assistance, Temporary Housing, and Human Services Annex This is the ESF most directly focused on individual survivors rather than infrastructure.
ESF #7 — Logistics
ESF #7 handles the supply chain side of disaster response. It plans, procures, and delivers supplies, equipment, services, and facilities to support both responders and survivors, integrating logistics across federal partners, private stakeholders, and nonprofits.9Federal Emergency Management Agency. Emergency Support Function 7 – Logistics Annex
ESF #8 — Public Health and Medical Services
Led by the Department of Health and Human Services. ESF #8 supplements local and state public health and medical resources during emergencies. Its scope goes well beyond hospital care, covering public health surveillance, medical equipment deployment, patient movement, mental health services, and mass fatality management.10Federal Emergency Management Agency. Emergency Support Function 8 – Public Health and Medical Services Annex
ESF #9 — Search and Rescue
ESF #9 deploys federal search and rescue resources when local and state teams are overwhelmed or the scale demands national-level support. Federal search and rescue operations break into three categories: structural collapse (urban search and rescue in damaged or collapsed buildings), maritime and waterborne operations (using aviation, boats, and response teams), and land search and rescue (ground and air operations outside the other two categories).11Federal Emergency Management Agency. Emergency Support Function 9 – Search and Rescue Annex
ESF #10 — Oil and Hazardous Materials Response
ESF #10 provides the federal response to actual or potential releases of oil or hazardous materials, including chemical, biological, and radiological substances. The scope ranges from initial containment and prevention to long-term environmental cleanup: sampling contaminated air, water, and soil; decontaminating buildings; removing contaminated soil; and disposing of hazardous waste and contaminated debris.12Federal Emergency Management Agency. ESF 10 – Oil and Hazardous Materials Response Annex Lead responsibility falls to the EPA or the U.S. Coast Guard depending on the type of incident.
ESF #11 — Agriculture and Natural Resources
Coordinated by the U.S. Department of Agriculture. ESF #11 covers five areas: providing nutrition assistance to disaster-affected populations, responding to outbreaks of animal and plant diseases, ensuring the safety of the commercial food supply, protecting natural and cultural resources and historic properties, and providing for the safety and well-being of household pets during emergencies.13Federal Emergency Management Agency. Emergency Support Function 11 – Agriculture and Natural Resources Annex The Department of the Interior takes the lead specifically on natural and cultural resource protection under this ESF.14Animal and Plant Health Inspection Service. Emergency Support Function 11
ESF #12 — Energy
Led by the Department of Energy. ESF #12 coordinates assessment, repair, and restoration of energy systems after an incident. Energy here is broad: electricity generation and transmission, natural gas, petroleum products, and the infrastructure involved in producing, transporting, and distributing energy. ESF #12 works closely with private sector energy companies, which own most of the nation’s energy infrastructure, to identify damage and prioritize restoration.15Federal Emergency Management Agency. Emergency Support Function 12 – Energy Annex
ESF #13 — Public Safety and Security
ESF #13 provides federal law enforcement and security assistance when state, tribal, territorial, and local public safety resources are overwhelmed. This includes security for critical facilities, support for access and crowd control, security planning, and technical resource assistance.16Federal Emergency Management Agency. Emergency Support Function 13 – Public Safety and Security Annex
ESF #14 — Cross-Sector Business and Infrastructure
ESF #14 was originally titled Long-Term Community Recovery, but the current version focuses on cross-sector business and infrastructure coordination. It supports coordination among infrastructure owners and operators, businesses, and government partners to stabilize community lifelines and protect national critical functions. ESF #14 acts as the primary interface for critical infrastructure sectors not already aligned to another ESF and supports coordination across all sectors during incidents.17Federal Emergency Management Agency. Emergency Support Function 14 – Cross-Sector Business and Infrastructure Annex Long-term community recovery responsibilities have since moved to the National Disaster Recovery Framework and its Recovery Support Functions.
ESF #15 — External Affairs
ESF #15 coordinates the release of accurate, timely, and accessible public information to affected communities, government officials, media, and the private sector. It integrates public affairs, congressional affairs, intergovernmental affairs, and community relations into a unified communications effort.18Federal Emergency Management Agency. Emergency Support Function 15 – External Affairs Annex A key component is the National Joint Information Center, which is activated during incidents requiring a coordinated federal response and serves as the federal communications coordination hub so that messaging across agencies stays consistent.
How ESFs Get Activated
When an incident overwhelms state and local resources, FEMA activates the ESFs it needs. All 15 do not turn on at once. A coastal hurricane might activate the functions for transportation, public works, mass care, and energy, while an oil spill might involve only ESF #10. Once activated, federal agencies carry out their ESF responsibilities through mission assignments, which are formal work orders from FEMA directing a specific agency to perform a task. Agencies that incur costs under mission assignments can seek reimbursement from FEMA, though regular salaries of permanent federal employees and standard overhead generally are not reimbursable.19Federal Emergency Management Agency. Mission Assignment Billing and Reimbursement Checklist
What ESFs Do Not Cover
ESFs are a response-phase tool. They coordinate federal help during and immediately after an incident. Longer-term recovery, including rebuilding communities, restoring economic activity, and repairing housing stock, falls under the National Disaster Recovery Framework and its Recovery Support Functions, which operate on a different timeline with different coordinating agencies. Preparedness activities like training, exercises, and grant programs are handled through other national preparedness structures. Knowing where ESFs end and these other frameworks begin matters if you are working in emergency management or trying to navigate federal assistance after a disaster.