Massachusetts v. Environmental Protection Agency
E1435767
UNEXPLORED
Massachusetts v. Environmental Protection Agency is a landmark 2007 U.S. Supreme Court decision that held the EPA has authority under the Clean Air Act to regulate greenhouse gas emissions from new motor vehicles.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Massachusetts v. Environmental Protection Agency canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T20532629 — 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: Massachusetts v. Environmental Protection Agency Context triple: [Roberts Court, landmarkCase, Massachusetts v. Environmental Protection Agency]
-
A.
North Carolina v. EPA
North Carolina v. EPA is a 2008 D.C. Circuit Court of Appeals case that significantly limited the Environmental Protection Agency’s authority to implement interstate air pollution controls under the Clean Air Act, leading to the invalidation of the Clean Air Interstate Rule.
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B.
Massachusetts v. United States Department of Health and Human Services
Massachusetts v. United States Department of Health and Human Services is a landmark federal court case in which the District of Massachusetts struck down key provisions of the Defense of Marriage Act as unconstitutional for denying federal recognition and benefits to same-sex marriages recognized by the state.
-
C.
Vermont Yankee Nuclear Power Corp. v. NRDC
Vermont Yankee Nuclear Power Corp. v. NRDC is a 1978 U.S. Supreme Court case that limited courts’ ability to impose additional procedural requirements on federal agencies beyond those mandated by the Administrative Procedure Act and relevant statutes.
-
D.
American Electric Power Co. v. Connecticut
American Electric Power Co. v. Connecticut is a 2011 U.S. Supreme Court case that held federal common law public nuisance claims over greenhouse gas emissions are displaced by the Clean Air Act, making the Environmental Protection Agency the primary regulator of such emissions.
-
E.
Utility Air Regulatory Group v. Environmental Protection Agency
Utility Air Regulatory Group v. Environmental Protection Agency was a 2014 U.S. Supreme Court case that limited the Environmental Protection Agency’s authority to regulate greenhouse gas emissions from stationary sources under the Clean Air Act.
- 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: Massachusetts v. Environmental Protection Agency Target entity description: Massachusetts v. Environmental Protection Agency is a landmark 2007 U.S. Supreme Court decision that held the EPA has authority under the Clean Air Act to regulate greenhouse gas emissions from new motor vehicles.
-
A.
North Carolina v. EPA
North Carolina v. EPA is a 2008 D.C. Circuit Court of Appeals case that significantly limited the Environmental Protection Agency’s authority to implement interstate air pollution controls under the Clean Air Act, leading to the invalidation of the Clean Air Interstate Rule.
-
B.
Massachusetts v. United States Department of Health and Human Services
Massachusetts v. United States Department of Health and Human Services is a landmark federal court case in which the District of Massachusetts struck down key provisions of the Defense of Marriage Act as unconstitutional for denying federal recognition and benefits to same-sex marriages recognized by the state.
-
C.
Vermont Yankee Nuclear Power Corp. v. NRDC
Vermont Yankee Nuclear Power Corp. v. NRDC is a 1978 U.S. Supreme Court case that limited courts’ ability to impose additional procedural requirements on federal agencies beyond those mandated by the Administrative Procedure Act and relevant statutes.
-
D.
American Electric Power Co. v. Connecticut
American Electric Power Co. v. Connecticut is a 2011 U.S. Supreme Court case that held federal common law public nuisance claims over greenhouse gas emissions are displaced by the Clean Air Act, making the Environmental Protection Agency the primary regulator of such emissions.
-
E.
Utility Air Regulatory Group v. Environmental Protection Agency
Utility Air Regulatory Group v. Environmental Protection Agency was a 2014 U.S. Supreme Court case that limited the Environmental Protection Agency’s authority to regulate greenhouse gas emissions from stationary sources under the Clean Air Act.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.