Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission
E77021
Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission is a landmark 1971 federal court decision that gave strong judicial force to the National Environmental Policy Act by requiring agencies to rigorously consider environmental impacts in their decision-making.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T615028 — 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: Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission Context triple: [National Environmental Policy Act, relatedCaseLaw, Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission]
-
A.
United States v. Darby
United States v. Darby is a 1941 U.S. Supreme Court case that upheld federal labor regulations under the Commerce Clause and marked a broad expansion of federal power over economic activity.
-
B.
National League of Cities v. Usery
National League of Cities v. Usery was a 1976 U.S. Supreme Court case that temporarily limited Congress’s power under the Commerce Clause by holding that federal wage and hour regulations could not be applied to traditional state government functions.
-
C.
Chiafalo v. Washington
Chiafalo v. Washington is a 2020 U.S. Supreme Court case that unanimously upheld states’ authority to penalize or replace “faithless electors” who do not vote in line with their state’s popular vote in presidential elections.
-
D.
United States v. Comstock
United States v. Comstock is a 2010 U.S. Supreme Court case that upheld Congress’s authority to civilly commit mentally ill, sexually dangerous federal prisoners beyond their release date under the Constitution’s Necessary and Proper Clause.
-
E.
Hanford Federal Facility Agreement and Consent Order
The Hanford Federal Facility Agreement and Consent Order is a legally binding cleanup and compliance agreement among federal and state agencies that governs the environmental remediation and waste management activities at the Hanford nuclear site in Washington State.
- 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: Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission Target entity description: Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission is a landmark 1971 federal court decision that gave strong judicial force to the National Environmental Policy Act by requiring agencies to rigorously consider environmental impacts in their decision-making.
-
A.
United States v. Darby
United States v. Darby is a 1941 U.S. Supreme Court case that upheld federal labor regulations under the Commerce Clause and marked a broad expansion of federal power over economic activity.
-
B.
National League of Cities v. Usery
National League of Cities v. Usery was a 1976 U.S. Supreme Court case that temporarily limited Congress’s power under the Commerce Clause by holding that federal wage and hour regulations could not be applied to traditional state government functions.
-
C.
Chiafalo v. Washington
Chiafalo v. Washington is a 2020 U.S. Supreme Court case that unanimously upheld states’ authority to penalize or replace “faithless electors” who do not vote in line with their state’s popular vote in presidential elections.
-
D.
United States v. Comstock
United States v. Comstock is a 2010 U.S. Supreme Court case that upheld Congress’s authority to civilly commit mentally ill, sexually dangerous federal prisoners beyond their release date under the Constitution’s Necessary and Proper Clause.
-
E.
Hanford Federal Facility Agreement and Consent Order
The Hanford Federal Facility Agreement and Consent Order is a legally binding cleanup and compliance agreement among federal and state agencies that governs the environmental remediation and waste management activities at the Hanford nuclear site in Washington State.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal court case
ⓘ
administrative law case ⓘ environmental law case ⓘ |
| appliesLaw | National Environmental Policy Act ⓘ |
| clarifiesConcept |
NEPA as an action-forcing statute
ⓘ
judicial review of agency compliance with environmental procedures ⓘ |
| concernsSubject |
environmental review of nuclear facility licensing
ⓘ
licensing of nuclear power plants ⓘ |
| hasAbbreviation | Calvert Cliffs ⓘ |
| hasAreaOfLaw |
administrative law
ⓘ
energy law ⓘ environmental law ⓘ |
| hasBranchOfGovernment | judicial branch of the United States ⓘ |
| hasCitation | 449 F.2d 1109 ⓘ |
| hasCountry |
United States of America
ⓘ
surface form:
United States
|
| hasCourt | United States Court of Appeals for the District of Columbia Circuit ⓘ |
| hasDecisionType | appellate decision ⓘ |
| hasDecisionYear | 1971 ⓘ |
| hasDefendant | United States Atomic Energy Commission ⓘ |
| hasEffect |
invalidated portions of Atomic Energy Commission regulations implementing NEPA
ⓘ
required revision of agency NEPA regulations ⓘ |
| hasHolding |
NEPA imposes judicially enforceable procedural duties on federal agencies
ⓘ
agency regulations that unduly limit NEPA’s application are invalid ⓘ federal agencies must rigorously consider environmental factors in decision-making under NEPA ⓘ |
| hasImpactOn |
environmental impact assessment procedures
ⓘ
federal administrative practice ⓘ nuclear power plant licensing process ⓘ |
| hasJurisdiction | federal ⓘ |
| hasKeyIssue |
implementation of the National Environmental Policy Act by federal agencies
ⓘ
requirement for environmental impact statements ⓘ scope of judicial review of agency NEPA compliance ⓘ |
| hasLanguage | English ⓘ |
| hasLegalSignificance |
considered a landmark in U.S. environmental law
ⓘ
established strong judicial enforcement of NEPA procedures ⓘ first major appellate decision interpreting NEPA ⓘ |
| hasPlaintiff |
Calvert Cliffs
ⓘ
surface form:
Calvert Cliffs Coordinating Committee
|
| hasRegion |
United States Court of Appeals for the District of Columbia Circuit
ⓘ
surface form:
District of Columbia Circuit
|
| hasTimePeriod | 20th century ⓘ |
| interpretsStatute | Section 102 of the National Environmental Policy Act ⓘ |
| isDescribedAs |
landmark NEPA decision
ⓘ
leading case on environmental impact statements ⓘ |
| requiresAgencyAction |
integration of environmental considerations at all stages of agency decision-making
ⓘ
preparation of environmental impact statements before major federal actions ⓘ |
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: Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission Description of subject: Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission is a landmark 1971 federal court decision that gave strong judicial force to the National Environmental Policy Act by requiring agencies to rigorously consider environmental impacts in their decision-making.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
National Environmental Policy Act
→
relatedCaseLaw
→
Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission
ⓘ