United States · crisis history

Wildfires in northern Minnesota, prompting evacuations.

Cyclosporiasis outbreak in the United States.

A cyclosporiasis outbreak linked to iceberg lettuce supplied by Taylor Farms and distributed through Taco Bell, resulting in over 100 hospitalizations.

Wildfires in the United States and Canada, prompting evacuations.

A plane carrying skydivers crashes in Butler, Missouri, killing twelve people.

A ceasefire agreement is reached between Iran and the United States, with Pakistan's involvement.

Iran and the United States agree to a ceasefire, ending the war.

An outbreak of cyclosporiasis affecting multiple states, primarily Michigan.

Wreckage of a crashed Pan Am flight from 1952 is located off Puerto Rico.

A B-52 Stratofortress crashes shortly after takeoff at Edwards Air Force Base, killing eight.

A mass shooting at an abandoned veterinary clinic in Midland, Texas, resulting in one death and ten injuries.

A tent collapse at a church event in Moneta, Virginia, resulting in one death and twenty-two injuries.

Hantavirus outbreak on a cruise ship, with six people remaining in quarantine.

A NetJets-operated business jet crashes on Loop 20 highway in Laredo, Texas.

The United States Central Command launches a second round of airstrikes on targets throughout Iran.

The U.

The Islamic Revolutionary Guard Corps attacked the U.

Announcement of the withdrawal of all remaining U.

Outbreak of cyclosporiasis in the United States, affecting multiple states.

A US Navy helicopter crash resulting in fatalities and injuries.

Governor Patrick Morrisey declares a state of emergency due to flash floods caused by torrential rains.

Catastrophic wind-driven urban wildfires in Pacific Palisades and Altadena/Eaton; tens of thousands displaced; among costliest U.

ALPHV/BlackCat ransomware attack on UnitedHealth subsidiary disrupted healthcare claims nationwide for weeks; HIPAA and sector resilience reforms.

Defective CrowdStrike Falcon sensor update caused largest IT outage in history; grounded airlines and disrupted hospitals; drove software-resilience policy debate.

M/V Dali container ship struck and collapsed the Francis Scott Key Bridge in Baltimore; closed Port of Baltimore for weeks; NTSB and DHS-led recovery.

Major hurricane causing catastrophic inland flooding in Western North Carolina; deadliest mainland U.

Major Florida-landfalling hurricane following close on Helene, straining FEMA disaster relief funding.

Norfolk Southern derailment in Ohio releasing vinyl chloride and other hazmats; renewed federal rail-safety legislative push.

Catastrophic wildfires destroying Lahaina; over 100 deaths; emergency-alert and grid-resilience scrutiny.

Category 4-5 hurricane devastating Southwest Florida; among costliest U.

DarkSide ransomware attack shutting down 5,500-mile fuel pipeline; first cyber event to trigger TSA pipeline security directives and emergency fuel waivers.

Category 4 hurricane making landfall in Louisiana on Katrina anniversary; major Northeast flooding from remnants.

Attack on the U.

Partial collapse of 12-story condominium in Surfside, FL; 98 deaths; NIST building-failure investigation.

Cold-weather event collapsed Texas ERCOT grid; 200+ deaths; FERC/NERC cold-weather reliability reforms.

Record wildfire season in California, Oregon, and Washington; San Francisco 'orange sky' day; major air-quality and climate-resilience policy driver.

Catastrophic derecho across Iowa and Midwest causing widespread agricultural and power damage.

Russian SVR-attributed supply-chain compromise of SolarWinds Orion affecting 18,000 customers including 9 federal agencies; defining U.

Deadliest and most destructive wildfire in California history; 85+ deaths; PG&E equipment ignition.

Slow-moving hurricane causing record flooding in the Carolinas.

Category 5 hurricane devastating Florida Panhandle; rapid intensification at landfall.

147M Americans' personal data exfiltrated; drove FTC settlement and credit-bureau oversight legislation.

Category 4 hurricane causing historic flooding in Houston; over $125B in damage.

Category 5 hurricane devastating Caribbean and Florida Keys.

Category 5 hurricane catastrophically damaging Puerto Rico and U.

Deadliest mass shooting in modern U.

Devastating wildfires in Sonoma and Napa counties; informed wildfire/utility risk policy.

Mass shooting at Pulse nightclub, Orlando; deadliest U.

Russian GRU/FSB intrusion into DNC systems and influence operation; led to designation of elections as critical infrastructure.

Mass shooting at Inland Regional Center; FBI investigation drove encryption-backdoor policy debate.

Aedes-borne Zika outbreak in the Americas; first U.

China-attributed intrusion exfiltrated 21.

West Africa Ebola epidemic with U.

Bombing at Boston Marathon and subsequent manhunt; first major homegrown attack post-9/11; shaped soft-target preparedness and 'Stop the Bleed' campaign.

EF5 tornado striking Moore, OK; reinforced demand for stronger building codes and shelters.

Ammonium nitrate explosion at West Fertilizer Company; drove EO 13650 and chemical-facility safety reforms.

Post-tropical cyclone Sandy made landfall in New Jersey; over $70B in damage; catalyzed Sandy Recovery Improvement Act and major NDRF deployment.

Mass shooting at Sandy Hook Elementary School, Newtown, CT; drove school safety policy and federal mental health/firearms debate.

Major hurricane affecting U.

EF5 tornado in Joplin, Missouri; deadliest single tornado in 60+ years; informed NIST building code studies and shelter standards.

Magnitude 9.

BP Macondo well blowout in the Gulf of Mexico — largest marine oil spill in U.

Magnitude 7.

First WHO-declared pandemic of the 21st century; tested national pandemic plan, Strategic National Stockpile, and HHS-DHS coordination.

Steel-truss bridge collapse in Minneapolis; renewed focus on bridge inspection and infrastructure resilience.

Mass shooting at Virginia Tech; informed campus emergency notification, mass-casualty active-shooter doctrine, and IPAWS development.

Series of on-shore oil pipeline spills, including notable Alaska North Slope incidents.

Category 5 hurricane causing levee failures and catastrophic flooding in New Orleans; defining failure of federal emergency response.

Major hurricane striking the Texas-Louisiana coast weeks after Katrina.

Most intense hurricane on record in the Atlantic basin at the time of formation; struck Florida.

Four major hurricanes (Charley, Frances, Ivan, Jeanne) struck Florida in the 2004 Atlantic hurricane season.

Major Atlantic hurricane affecting the U.

Letters containing anthrax spores mailed across the U.

Coordinated terrorist attacks against the World Trade Center and the Pentagon, the defining inflection point of U.

Major Atlantic hurricane causing extensive flooding in North Carolina and the eastern seaboard.

Magnitude 6.

Catastrophic flooding across the Mississippi and Missouri River basins.

Category 5 hurricane devastating South Florida, leading to major FEMA criticism and federal disaster reform.

Most powerful hurricane to strike Hawaii in recorded history, struck Kauai.

Tanker grounding in Prince William Sound, Alaska, causing major ecological disaster.

Category 5 hurricane causing major damage in the Caribbean, South Carolina, and the southeastern U.

Magnitude 6.

Methyl isocyanate release at Union Carbide pesticide plant in Bhopal, India — worst industrial chemical disaster in history.

Dioxin contamination of Times Beach, Missouri, resulting in evacuation and federal buyout of the town.

Catastrophic volcanic eruption in Washington state.

Partial nuclear meltdown at Three Mile Island, PA — most significant U.

Toxic waste contamination crisis in Niagara Falls, NY, exposing buried chemical waste under a residential community.

The Vietnam War was an armed conflict in Vietnam, Laos, and Cambodia that lasted from 1955 to 1975.

The Korean War was an armed conflict fought on the Korean Peninsula between North Korea and South Korea, with North Korea supported by China and the Soviet Union, while South Korea…

A battle for the capture of Manila from Japanese forces.

A major battle between U.

Allied forces bomb Bucharest, Romania for 4.

US and Australian troops land on Papua New Guinea to cut off Japanese retreat.

A Swiss city is accidentally bombed by the United States, causing serious damage.

An unsuccessful Japanese attack on Pearl Harbor from two flying boats.

The German airship Hindenburg bursts into flame while mooring in Lakehurst, New Jersey, killing 36 passengers and crew.

A major flood along the Ohio River in January and February, leaving 1 million people homeless and causing significant loss of life.

A Category 5 hurricane strikes the Upper Florida Keys, killing 423 people.

A strong hurricane devastates the city of Miami, causing significant loss of life and property damage.

A wave of molasses released from an exploding storage tank sweeps through Boston, killing 21 people and injuring 150.

An explosion at Kingsland (modern-day Lyndhurst, New Jersey) sets off events leading to U.

The United States declares war on Germany, marking its entry into World War I.

Venustiano Carranza is elected president of Mexico, and the United States gives de jure recognition to his government.

Germany offers to give the American Southwest back to Mexico if Mexico will take sides with Germany.

A series of shark attacks along the New Jersey coastline, resulting in 4 deaths and inspiring future literature.

Mexican revolutionary Pancho Villa leads an attack on the U.

The Colorado National Guard attacked a tent colony of striking coal miners, resulting in 21 deaths.

The U.

A freighter carrying dynamite explodes in Baltimore Harbor, killing several people.

A major volcanic eruption occurred in Alaska, forming the Novarupta volcano and marking one of the largest eruptions of the 20th century.

Eugene B.

A coal mine explosion in Primero, Colorado, resulting in 75 miner deaths.

A massive avalanche in Washington State that swept away two trains, killing 96 people.

The final withdrawal of U.

Thomas Selfridge becomes the first person to die in an airplane crash, piloted by Orville Wright.

A fire breaks out at the Rhoads Opera House in Boyertown, Pennsylvania, resulting in 171 deaths.

A major financial crisis in the United States averted by J.

A coal mine explosion in Monongah, West Virginia, resulting in 362 deaths.

An earthquake with an estimated magnitude of 8.

A major earthquake destroys much of San Francisco, killing at least 3,000 and leaving 225,000–300,000 homeless.

A boiler explosion and building collapse at the Grover Shoe Factory in Brockton, Massachusetts, killing 58 employees.

A tornado destroys the town of Snyder, Oklahoma, killing 97 people.

A tornado that destroys the town of Snyder, Oklahoma, killing 97 people.

A coal mine explosion in Zeigler, Illinois, kills 50 miners.

A coal mine explosion in Zeigler, Illinois, killing 50 miners.

The United States acquires a perpetual lease for Guantánamo Bay in Cuba.

The United States and Panama sign a treaty granting the U.

A flash flood in Heppner, Oregon kills approximately 238 people.

An explosion at the United States Cartridge Company in Tewksbury, Massachusetts destroys 70 homes and kills 22 residents.

The United Kingdom, Germany, and Italy reach a settlement with Venezuela in Washington, ending the naval blockade imposed since 1902.

A mine explosion kills 112 miners in Johnstown, Pennsylvania.

Filipino guerrillas kill more than forty United States soldiers in a surprise attack.

The Pacific Mail Steamship Company's SS City of Rio de Janeiro sinks entering San Francisco Bay, killing 128.

American anarchist Leon Czolgosz shoots U.

Semiconductor and R&D investment; treated as critical-infrastructure supply-chain resilience policy.

Required covered critical infrastructure entities to report substantial cyber incidents to CISA within 72 hours and ransomware payments within 24 hours.

Largest U.

$1.

$1.

$2.

First major federal COVID-19 response statute: paid sick leave, free testing, expanded FMLA.

Reauthorized PAHPA; strengthened MCM development incentives, pediatric preparedness, and SNS authorities.

Established the Cybersecurity and Infrastructure Security Agency (CISA), rebranding and elevating NPPD.

Major Stafford Act reform: pre-disaster mitigation set-aside, BRIC funding, wildfire mitigation, code enforcement.

Enabled cyber threat indicator sharing between private sector and federal government with liability protections.

Reformed Section 215 of the USA PATRIOT Act after the Snowden disclosures, ending bulk telephony metadata collection by NSA and replacing it with a targeted, carrier-held productio…

Modernized federal information security; gave DHS operational authority over federal civilian networks.

Reauthorized PAHPA; expanded BARDA, MCM enterprise, and Strategic National Stockpile authorities.

Significantly amended Stafford Act: streamlined Public Assistance, alternative-procedure pilots, tribal disaster declarations, Hazard Mitigation Grant Program reforms.

Stimulus statute including major investments in grid modernization, health IT, and resilience-related infrastructure.

Codified additional 9/11 Commission recommendations; expanded interoperable communications, transit security, and DHS authorities.

Established Assistant Secretary for Preparedness and Response (ASPR) and BARDA; restructured HHS public-health emergency authorities.

Required state and local emergency plans to account for household pets and service animals in disaster evacuations; passed after Katrina.

Title VI of the DHS Appropriations Act of 2007; restored and strengthened FEMA within DHS, defined Administrator role, and codified national preparedness reforms.

Reauthorized 14 of the 16 sunsetting provisions of the original USA PATRIOT Act on a permanent basis and added new oversight, sunsets, and minor reforms.

Strengthened the National Flood Insurance Program's repetitive loss provisions.

Reauthorized the National Earthquake Hazards Reduction Program.

Authorized procurement of medical countermeasures against biological, chemical, radiological, and nuclear threats.

Established the Department of Homeland Security and consolidated 22 federal agencies including FEMA.

Authorized NIST teams to investigate major building failures following the WTC collapse.

Statute strengthening U.

Sweeping post-9/11 counterterrorism statute expanding federal surveillance, intelligence-sharing, financial-tracking, and law-enforcement authorities; principal early legislative r…

Amended the Stafford Act to require pre-disaster mitigation planning by state, tribal, and local governments.

Federal antiterrorism statute passed after the Oklahoma City bombing.

Title XIV of FY1997 NDAA; established WMD preparedness program for first responders.

Reformed the National Flood Insurance Program following the 1993 Midwest Floods.

Statute responding to Exxon Valdez, requiring double-hull tankers and creating Oil Spill Liability Trust Fund.

Primary federal statute governing presidential disaster declarations and federal disaster assistance.

Statute requiring emergency planning and reporting of toxic chemicals; passed after Bhopal as Title III of SARA.

Statute creating the Superfund program for cleanup of contaminated sites; response to Love Canal and similar incidents.

Federal statute strengthening U.

National Earthquake Hazards Reduction Program, established 1977 and periodically reauthorized.

A law prohibiting discrimination based on race, creed, or national origin in Alaska.

Proposed by President Franklin D.

U.

A set of moral guidelines for the American motion picture industry.

Grants Puerto Ricans United States citizenship.

A treaty signed to protect migratory birds, marking an important step in international environmental cooperation.

Arizona was admitted to the United States as its 48th state, completing the contiguous states.

The Supreme Court of the United States dissolved Standard Oil into 34 separate oil companies due to violation of the Sherman Anti-Trust Act.

The United States Congress passes the Platt Amendment, limiting Cuba's autonomy.

American citizen Dena Karari was released from Iran after being detained on espionage charges since 2024.

Limitation-of-liability action by Dali's owner/manager after the Key Bridge collapse.

EPA/DOJ $310M civil penalty + $25M criminal-investigation reservation arising from the East Palestine derailment.

Mass-tort consolidation following the 2023 Lahaina wildfires.

Five Proud Boys leaders convicted of seditious conspiracy and other felonies arising from January 6.

Federal indictment of former President Trump on four counts arising from January 6 election-certification efforts.

Companion to NFIB v.

SCOTUS stayed OSHA's COVID-19 large-employer vaccine-or-test emergency temporary standard, holding it exceeded the agency's statutory authority.

First federal conviction of a corporate CISO for concealing a data breach from federal investigators.

First seditious-conspiracy convictions arising from January 6.

Consolidated victim-and-survivor litigation for the 2021 Surfside, FL condominium collapse.

Per curiam SCOTUS opinion enjoining New York's COVID-19 worship attendance caps under the Free Exercise Clause.

PG&E filed Chapter 11 (Jan 2019) under crushing wildfire liabilities.

MDL plus FTC/CFPB/multistate AG settlement following the 2017 Equifax breach.

Second Circuit held that NSA bulk telephony metadata collection under PATRIOT Act §215 exceeded statutory authority.

MDL by federal employees whose security-clearance records were exfiltrated.

MDL plus DOJ/EPA criminal and civil settlements following discovery of VW's defeat-device emissions cheating.

Federal prosecution of Dzhokhar Tsarnaev for the 2013 Boston Marathon bombing.

MDL arising from the 2013 Target POS breach.

SCOTUS held plaintiffs lacked Article III standing to challenge FISA Amendments Act §702 surveillance because they could not show concrete injury.

SCOTUS limited Alien Tort Statute jurisdiction over extraterritorial conduct.

BP pleaded guilty to 11 counts of seaman's manslaughter, one count of obstructing Congress, and Clean Water Act / Migratory Bird Treaty Act violations.

Espionage Act indictment of NSA contractor Edward Snowden for disclosures of NSA mass-surveillance programs.

Military-commission prosecution of the alleged 9/11 mastermind.

MDL consolidating claims from Deepwater Horizon.

Court-martial conviction of Manning under Espionage Act for the largest U.

SCOTUS held Guantanamo detainees have the constitutional right to petition for habeas corpus, striking the Military Commissions Act's habeas-stripping provision.

Multi-decade EFF-led litigation challenging warrantless NSA surveillance of telecom backbone.

SCOTUS struck down the Bush administration's military commissions for Guantanamo detainees as inconsistent with the UCMJ and Geneva Conventions.

MDL covering thousands of property-damage claims arising from the New Orleans levee failures during Hurricane Katrina.

SCOTUS held that U.

First major 9/11-conspiracy prosecution in Article III courts.

Federal prosecutions of Timothy McVeigh (convicted June 1997, executed June 2001) and Terry Nichols for the 1995 Murrah Federal Building bombing.

Class action arising from the 1989 Exxon Valdez oil spill.

Cross-border mass-tort litigation arising from the 1984 Bhopal disaster.

First U.

SCOTUS (5-3) blocked completion of the nearly-finished Tellico Dam under the Endangered Species Act snail-darter listing.

The Second Manifesto, prohibiting polygamy within the Church of Jesus Christ of Latter-day Saints.

Superseded PPD-21; modernized 16-sector CIP framework, designated DHS/CISA as National Coordinator, codified risk-management framework.

Comprehensive AI executive order with critical-infrastructure, biosecurity, and incident-response dimensions.

Cross-government climate strategy; created climate task force; embedded climate risk in federal disaster, infrastructure, and security policy.

Directly responsive to SolarWinds: required zero-trust, SBOM, EDR, incident reporting, and creation of the Cyber Safety Review Board.

Created the Industrial Control Systems Cybersecurity Initiative; voluntary CISA performance goals.

Coordinated federal action to protect critical infrastructure from EMP threats.

Required federal agencies to manage cyber risk using NIST CSF; reaffirmed CIP-by-sector framework.

Established federal cyber-incident coordination architecture: threat response (FBI), asset response (DHS/CISA), intelligence support (ODNI).

Directed development of the NIST Cybersecurity Framework and information sharing for critical infrastructure.

Issued after West, TX explosion to improve chemical-facility safety regulation across OSHA/EPA/DHS.

Established 16 critical-infrastructure sectors, sector-specific agencies, and CIP governance; superseded HSPD-7.

Replaced HSPD-8; established the National Preparedness System and five preparedness mission areas (prevention, protection, mitigation, response, recovery).

Established four pillars of public-health and medical preparedness: biosurveillance, countermeasure distribution, mass-casualty care, community resilience.

National Continuity Policy; established National Essential Functions and continuity of government framework; reaffirmed via PPD-40 in 2016.

Established Office of Gulf Coast Rebuilding within DHS following Hurricane Katrina.

Bush administration strategy for preparedness and response to pandemic influenza.

Required federal departments to consider the needs of individuals with disabilities in emergency preparedness.

Comprehensive biodefense strategy covering threat awareness, prevention, surveillance, response, and recovery.

Established a coordinated and comprehensive approach to terrorist-related screening.

Established U.

Amended numerous executive orders to reflect creation of DHS and transfer of functions including FEMA.

Directed development of a single National Incident Management System (NIMS) and a National Response Plan (NRP).

Established U.

Established a national domestic all-hazards preparedness goal and framework.

Established the color-coded Homeland Security Advisory System.

Clinton directive establishing the national counterterrorism strategy and the National Coordinator for Security, Infrastructure Protection and Counterterrorism.

Clinton directive establishing the federal framework for critical infrastructure protection following PCCIP.

Established the President's Commission on Critical Infrastructure Protection (PCCIP).

Required ICSSC standards for evaluating seismic risk of existing federal buildings.

Required earthquake hazard reduction in new federal building construction.

Reagan executive order on FEMA support for nuclear power plant emergency planning.

National Security Decision Directive 47 establishing the Emergency Mobilization Preparedness Board.

Carter executive order on radiological emergency preparedness following Three Mile Island.

Carter executive order consolidating federal emergency management functions, formally establishing FEMA's operating authority.

CSRB review faulting Microsoft security culture after PRC-attributed intrusion into U.

CSRB review of Lapsus$ extortion campaign; identified MFA-bypass and SIM-swap risks.

USGCRP comprehensive U.

First CSRB report; reviewed Log4Shell vulnerability response and recommended SBOM and open-source security investments.

Final report of the House Select Committee investigating the January 6 Capitol attack.

House Select Subcommittee report on federal COVID-19 response and oversight findings.

Bipartisan commission recommending layered cyber deterrence; many recommendations enacted into FY21-FY23 NDAAs and CIRCIA.

USGCRP fourth national climate assessment with stark sectoral and economic risk findings.

FEMA foundational doctrinal document defining mission, vision, and roles.

First NIST investigation of a non-terrorism windstorm event under NCST Act; informed ICC tornado provisions.

Donovan-led task force strategy embedding resilience, climate-adaptive design, and rebuilding standards.

Presidential commission report on Deepwater Horizon causes and federal response, leading to BSEE creation.

Multi-year FEMA reports tracking implementation of Katrina lessons learned.

DHS Inspector General investigation into the response to Hurricane Katrina.

House Select Committee investigation into the preparation for and response to Hurricane Katrina, titled 'A Failure of Initiative.

Senate Homeland Security and Governmental Affairs Committee report on Hurricane Katrina, titled 'A Nation Still Unprepared.

White House report 'The Federal Response to Hurricane Katrina: Lessons Learned' authored under Frances Townsend.

RAND analysis of responder safety following 9/11, supporting OSHA and DHS responder safety policy.

FEMA report documenting the natural and beneficial functions of floodplains in reducing flood losses.

Recommended federal framework for protecting national critical infrastructure; foundation of CIP policy.

Report of the Interagency Floodplain Management Review Committee following the 1993 Midwest Floods; recommended reform of national floodplain management.

Government Accountability Office report identifying systemic shortfalls in federal-state-local disaster response coordination.

National Academy of Public Administration report critiquing federal emergency management after Hurricane Andrew; influenced FEMA reform under Witt.

NAPA review of federal hazardous materials accident safety activities.

Federal assessment study of consequences from a catastrophic earthquake, informing later NEHRP and earthquake preparedness policy.

Series of after-action analyses produced following the major incidents of 1978-1979.

Statutory White House office (PAHPAIA codification) for pandemic preparedness coordination; replaced ad-hoc COVID-19 Response Team.

Public-private review board modeled on NTSB to investigate significant cyber incidents (e.

CISA-led public-private operational collaboration for cyber-defense planning and shields-up coordination.

Statutory White House office established by the FY21 NDAA to coordinate national cybersecurity policy and strategy.

DHS operational agency for cybersecurity and critical-infrastructure resilience; successor to NPPD; designated National Coordinator under NSM-22.

FEMA directorate combining mitigation, insurance, continuity, and grants in a unified resilience mission.

DHS 24/7 cyber situational awareness center; merged into CISA cyber operations on agency creation.

DHS directorate consolidating cybersecurity, infrastructure protection, federal protective service, and biometrics; rebranded as CISA in 2018.

HHS principal advisor for public-health and medical emergency response; elevated to operating division Administration for Strategic Preparedness and Response (ASPR-as-Administratio…

HHS authority established under PAHPA to develop and procure medical countermeasures against CBRN and pandemic threats; led Operation Warp Speed.

DHS Preparedness Directorate that briefly housed preparedness functions separate from FEMA following the second-stage review.

Cabinet department established to consolidate U.

Original DHS directorate that absorbed FEMA from 2003 to 2005.

Successor office to CEPPO and OEER consolidating EPA emergency response capabilities.

Federal advisory council providing strategic advice to the Secretary of Homeland Security.

White House office established by Bush after 9/11; precursor to DHS.

FEMA directorate created under Director Witt to elevate hazard mitigation as a core agency function.

EPA office for chemical emergency preparedness, established after Bhopal.

Federal public health agency established under CERCLA to address health effects from hazardous substance exposures.

Interagency committee coordinating federal radiological emergency preparedness.

Federal agency for emergency management; independent agency from April 1979 to March 2003, then subsumed into DHS.

CISA national cyber alert and preparedness campaign launched in advance of the Russian invasion of Ukraine.

FEMA pre-disaster mitigation program established by DRRA, replacing PDM with set-aside funding from federal disaster cost-share.

HHS/DoD/BARDA public-private partnership that delivered COVID-19 vaccines, therapeutics, and diagnostics at unprecedented speed.

Post-Katrina recovery and response planning revisions to NRP and related frameworks.

Final National Response Plan issued under HSPD-5; replaced FRP and FRERP; later superseded by National Response Framework.

Initial NRP issued in September 2003 as an interim framework prior to the Final NRP.

Federal medical countermeasure stockpile, transferred from CDC to ASPR/HHS in 2018; central to anthrax, H1N1, Ebola, and COVID-19 responses.

FEMA pre-disaster mitigation program under Director Witt, defunded in 2001-2002.

Federal Response Plan signed for natural hazards; coordinated 27 federal agencies under Stafford Act; superseded by NRP in 2004.

Federal response plan signed for response to a catastrophic earthquake.

Federal plan for coordinated response to peacetime radiological emergencies.

National Oil and Hazardous Substances Pollution Contingency Plan; foundational federal response framework, revised multiple times.

PPD-8 protection mission area framework.

Voluntary framework for managing cybersecurity risk; updated to CSF 2.

PPD-8 mitigation mission area framework defining seven Mitigation Core Capabilities.

PPD-8 prevention mission area framework focused on imminent terrorist threats.

FEMA risk-assessment methodology for state, local, tribal, and territorial preparedness planning.

First national framework dedicated to disaster recovery; defines Recovery Support Functions (RSFs).

Replaced the National Response Plan; iteratively updated (2013, 2016, 2019) with ESFs and scalable response structures.

All-hazards national preparedness goal required by HSPD-8.

DHS guidance implementing HSPD-8 national preparedness goal.

Standardized national approach to incident management mandated by HSPD-5.

EO 14008 + IIJA + IRA embedded climate adaptation into federal preparedness, FEMA mitigation, FFRMS, and DOT/EPA resilience programs.

Largest peacetime mobilization of FEMA + HHS; Stafford emergency declarations applied to a biological event; PPE/vaccine distribution at federal scale; redefined public-health emer…

DRRA elevated pre-disaster mitigation funding through 6% set-aside, launched BRIC, expanded code-enforcement, wildfire and earthquake mitigation, and tribal authorities.

Creation of CISA, ONCD, CSRB, JCDC; EO 14028 zero-trust mandate; CIRCIA reporting; National Cybersecurity Strategy 2023; NSM-22 CIP modernization.

SRIA, Sandy Rebuilding Task Force, and NDRF deployment transformed recovery doctrine: alternative-procedure PA, faster grants, integrated resilience and climate adaptation.

Reorganization of FEMA within DHS, restoration of preparedness functions to FEMA, codification of national preparedness reforms via PKEMRA.

Reform of FEMA under Director Witt: customer-focused culture, mitigation directorate, all-hazards model, cabinet elevation.

Failure to activate sirens, delayed evacuations, and inadequate utility shutoff during Lahaina wildfire.

ERCOT generation failures during Storm Uri exposed inadequate winterization and market-design flaws.

Documented gaps in early testing capacity, PPE stockpile readiness, interagency coordination, and risk communication.

Inadequate federal logistics, communications, and recovery capacity for Puerto Rico after Maria, with disputed excess-mortality estimates and reconstruction delays.

Systemic federal, state, and local response failure during Hurricane Katrina, exposing weaknesses in NRP, NIMS, FEMA-DHS integration, communications, and catastrophic preparedness.

Widely criticized slow federal response to Hurricane Andrew; triggered NAPA review and FEMA reform under Witt.

Third Top Officials exercise involving biological and chemical attack scenarios in NJ and CT.

FEMA-funded New Orleans catastrophic hurricane simulation that prefigured Katrina failures.

Second Top Officials counterterrorism exercise involving simulated WMD attacks.

First Top Officials counterterrorism exercise.

Wildfires burning across the United States, notably in Colorado and Utah.

Influenza outbreak at Lackland Air Force Base leads to mandatory vaccinations.

FEMA Director during Hurricane Katrina; resigned amid widespread criticism.

FEMA Director under President Clinton; led FEMA's transformation, mitigation focus, and elevation to cabinet status.

FEMA-administered national alert system enabling Wireless Emergency Alerts, EAS, NOAA Weather Radio, and AMBER alerts.