Title 6, Domestic SecurityRelease 119-110

§821 Definitions

Title 6 › CHAPTER 2 — NATIONAL EMERGENCY MANAGEMENT › SUBCHAPTER II — COMPREHENSIVE PREPAREDNESS SYSTEM › Part F — Global Catastrophic Risk Management › § 821

Last updated Sep 22, 2026|Official source

Summary

Defines key words used in the part. "Administrator" means the head of the Federal Emergency Management Agency (FEMA). "Basic need" covers goods, services, or activities needed to protect people’s health, safety, and general welfare, and includes six areas: food, water, shelter, basic communication services, basic sanitation and health services, and public safety. "Catastrophic incident" means a natural or human-caused disaster that causes very large casualties or damage, mass evacuations, or severe disruption to people, infrastructure, the environment, the economy, national morale, or government functions in an area. It can include events that last a long time nationwide, quickly overwhelm state and local resources, or interrupt government and emergency services so much that national security could be threatened. "Critical infrastructure" uses the definition in section 5195c(e) of title 42. "Existential risk" means the possibility of human extinction. "Global catastrophic risk" means the chance of events that would seriously harm or set back human civilization worldwide. "Global catastrophic and existential threats" are threats that could cause system-wide failure, destroy critical infrastructure, or greatly harm civilization; examples include severe global pandemics, nuclear war, asteroid or comet impacts, supervolcanoes, sudden severe climate change, and intentional or accidental threats from emerging technologies. "Indian Tribal government," "local government," and "State" use the meanings in section 5122 of title 42. "National exercise program" means activities to test and evaluate the national preparedness goal and related plans and strategies as described in section 748(b) of this title. "Secretary" means the Secretary of Homeland Security.

Full Legal Text

Title 6, §821

Domestic Security, Source: USLM XML via OLRC

In this part:
(1)Administrator (2) Basic need
The term “Administrator” means the Administrator of the Federal Emergency Management Agency.
(3)Catastrophic incident
The term “catastrophic incident”—
(A)means any natural or man-made disaster that results in extraordinary levels of casualties or damage, mass evacuations, or disruption severely affecting the population, infrastructure, environment, economy, national morale, or government functions in an area; and
(B)may include an incident—
(i)with a sustained national impact over a prolonged period of time;
(ii)that may rapidly exceed resources available to State and local government and private sector authorities in the impacted area; or
(iii)that may significantly interrupt governmental operations and emergency services to such an extent that national security could be threatened.
(4)Critical infrastructure
The term “critical infrastructure” has the meaning given such term in section 5195c(e) of title 42.
(5)Existential risk
The term “existential risk” means the potential for an outcome that would result in human extinction.
(6)Global catastrophic risk
The term “global catastrophic risk” means the risk of events or incidents consequential enough to significantly harm or set back human civilization at the global scale.
(7)Global catastrophic and existential threats
The term “global catastrophic and existential threats” means threats that with varying likelihood may produce consequences severe enough to result in systemic failure or destruction of critical infrastructure or significant harm to human civilization. Examples of global catastrophic and existential threats include severe global pandemics, nuclear war, asteroid and comet impacts, supervolcanoes, sudden and severe changes to the climate, and intentional or accidental threats arising from the use and development of emerging technologies.
(8)Indian Tribal government
The term “Indian Tribal government” has the meaning given the term “Indian tribal government” in section 5122 of title 42.
(9)Local government; State
The terms “local government” and “State” have the meanings given such terms in section 5122 of title 42.
(10)National exercise program
The term “national exercise program” means activities carried out to test and evaluate the national preparedness goal and related plans and strategies as described in section 748(b) of this title.
(11)Secretary
The term “Secretary” means the Secretary of Homeland Security.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

section 5195c(e) of title 42, referred to in par. (4), was in the original “section 1016(e) of the Critical Infrastructure Protection Act of 2001” and was translated as reading “section 1016(e) of the Critical Infrastructures Protection Act of 2001”, to reflect the probable intent of Congress.

Reference

Citations & Metadata

Citation

6 U.S.C. § 821

Title 6, Domestic Security

Last Updated

Sep 22, 2026

Release point: 119-110