National Environmental Policy Act
E12183
The National Environmental Policy Act is a foundational U.S. environmental law that requires federal agencies to assess and disclose the environmental impacts of their proposed actions through processes like Environmental Impact Statements.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T111618 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: National Environmental Policy Act Context triple: [U.S. Endangered Species Act, relatedTo, National Environmental Policy Act]
-
A.
U.S. Endangered Species Act
The U.S. Endangered Species Act is a landmark federal law that provides legal protection and conservation measures for species at risk of extinction and the ecosystems on which they depend.
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B.
Clean Air Act
The Clean Air Act is a landmark U.S. federal law that regulates air emissions from stationary and mobile sources to protect public health and the environment from air pollution.
-
C.
Resource Conservation and Recovery Act
The Resource Conservation and Recovery Act is a U.S. federal law that governs the management, treatment, storage, and disposal of solid and hazardous waste to protect human health and the environment.
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D.
Comprehensive Environmental Response, Compensation, and Liability Act
The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund) is a U.S. federal law that authorizes the federal government to identify, investigate, and clean up sites contaminated with hazardous substances and to hold responsible parties liable for the costs.
-
E.
Clean Water Act
The Clean Water Act is a landmark U.S. environmental law that regulates the discharge of pollutants into the nation’s waters and sets water quality standards to protect human health and aquatic ecosystems.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: National Environmental Policy Act Target entity description: The National Environmental Policy Act is a foundational U.S. environmental law that requires federal agencies to assess and disclose the environmental impacts of their proposed actions through processes like Environmental Impact Statements.
-
A.
U.S. Endangered Species Act
The U.S. Endangered Species Act is a landmark federal law that provides legal protection and conservation measures for species at risk of extinction and the ecosystems on which they depend.
-
B.
Clean Air Act
The Clean Air Act is a landmark U.S. federal law that regulates air emissions from stationary and mobile sources to protect public health and the environment from air pollution.
-
C.
Resource Conservation and Recovery Act
The Resource Conservation and Recovery Act is a U.S. federal law that governs the management, treatment, storage, and disposal of solid and hazardous waste to protect human health and the environment.
-
D.
Comprehensive Environmental Response, Compensation, and Liability Act
The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund) is a U.S. federal law that authorizes the federal government to identify, investigate, and clean up sites contaminated with hazardous substances and to hold responsible parties liable for the costs.
-
E.
Clean Water Act
The Clean Water Act is a landmark U.S. environmental law that regulates the discharge of pollutants into the nation’s waters and sets water quality standards to protect human health and aquatic ecosystems.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal statute
ⓘ
environmental law ⓘ |
| administeredBy |
Council on Environmental Quality
ⓘ
United States federal agencies ⓘ
linked to:
U.S. federal agencies
|
| appliesTo |
federal agencies
ⓘ
major Federal actions significantly affecting the quality of the human environment ⓘ |
| codifiedIn | 42 U.S.C. §§ 4321–4370h ⓘ |
| considered | cornerstone of U.S. environmental law ⓘ |
| contains |
Congressional declaration of national environmental policy
ⓘ
provisions for public participation in environmental decision-making ⓘ requirements for detailed statements on environmental impacts ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| doesNotDirectlyRegulate | private sector activities without federal involvement ⓘ |
| effectiveDate | 1970-01-01 ⓘ |
| enactedBy | United States Congress ⓘ |
| established | Council on Environmental Quality ⓘ |
| hasAcronym |
NEPA
ⓘ
linked to:
National Environmental Policy Act
|
| implementedThrough |
Council on Environmental Quality regulations
ⓘ
agency-specific NEPA procedures ⓘ |
| influenced |
international environmental impact assessment practices
ⓘ
state environmental policy acts ⓘ |
| keyConcept |
Environmental Assessment
ⓘ
Environmental Impact Statement ⓘ
linked to:
Environmental Impact Statements
Finding of No Significant Impact ⓘ human environment ⓘ major federal action ⓘ significantly affecting the quality of the human environment ⓘ |
| legalDoctrine | procedural statute rather than substantive environmental standard ⓘ |
| primaryPurpose |
to declare a national policy for the environment
ⓘ
to enrich the understanding of ecological systems and natural resources ⓘ to promote efforts which will prevent or eliminate damage to the environment and biosphere ⓘ |
| publicLawNumber | Public Law 91-190 ⓘ |
| relatedCaseLaw |
Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission
ⓘ
Robertson v. Methow Valley Citizens Council ⓘ Vermont Yankee Nuclear Power Corp. v. NRDC ⓘ |
| requires |
Environmental Assessments
ⓘ
Environmental Impact Statements ⓘ consideration of alternatives to proposed federal actions ⓘ consideration of cumulative environmental impacts ⓘ environmental impact assessment of major federal actions ⓘ interdisciplinary approach to environmental decision-making ⓘ public disclosure of environmental impacts ⓘ |
| section |
42 U.S.C. § 4331
ⓘ
42 U.S.C. § 4332 ⓘ |
| shortName |
NEPA
ⓘ
linked to:
National Environmental Policy Act
|
| signedBy | Richard Nixon ⓘ |
| signingDate | 1970-01-01 ⓘ |
| statutesAtLargeCitation | 83 Stat. 852 ⓘ |
| title |
National Environmental Policy Act of 1969
ⓘ
linked to:
National Environmental Policy Act
|
| yearOfEnactment | 1969 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: National Environmental Policy Act Description of subject: The National Environmental Policy Act is a foundational U.S. environmental law that requires federal agencies to assess and disclose the environmental impacts of their proposed actions through processes like Environmental Impact Statements.
Referenced by (90)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: National Environmental Policy Act
linked to: National Environmental Policy Act
linked to: National Environmental Policy Act
linked to: National Environmental Policy Act
linked to: National Environmental Policy Act
Title 42 of the United States Code
→
includes
→
National Environmental Policy Act codified sections
ⓘ
linked to: National Environmental Policy Act
National Historic Preservation Act Amendments of 1980
→
relatedTo
→
National Environmental Policy Act
ⓘ
subject linked to:
Alaska Region
linked to: National Environmental Policy Act
linked to: National Environmental Policy Act
Public Law 91-190
→
titleOfAct
→
An Act to establish a national policy for the environment, to provide for the establishment of a Council on Environmental Quality, and for other purposes
ⓘ
linked to: National Environmental Policy Act
linked to: National Environmental Policy Act
subject linked to:
Environmental Impact Statements
subject linked to:
Environmental Impact Statements
linked to: National Environmental Policy Act
Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission
→
appliesLaw
→
National Environmental Policy Act
ⓘ
linked to: National Environmental Policy Act
Robertson v. Methow Valley Citizens Council
→
holding
→
NEPA does not require federal agencies to adopt any particular mitigation measures identified in an environmental impact statement
ⓘ
linked to: National Environmental Policy Act
Robertson v. Methow Valley Citizens Council
→
holding
→
NEPA is essentially procedural and does not mandate particular substantive environmental results
ⓘ
linked to: National Environmental Policy Act
Robertson v. Methow Valley Citizens Council
→
statuteInterpreted
→
National Environmental Policy Act of 1969
ⓘ
linked to: National Environmental Policy Act
United States in litigation involving Indian tribes
→
governedBy
→
National Environmental Policy Act
ⓘ