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- Environmental Defense Fund v. Zeldin
Environmental Defense Fund v. Zeldin
Geography
Year
2025
Document Type
Litigation
Part of
About this case
Filing year
2025
Status
Supplemental brief filed by Domestic Energy Producers Alliance in opposition to petitioners' motion for summary vacatur of EPA's interim extension rule.
Geography
Docket number
25-1164
Court/admin entity
United States → United States Federal Courts → United States Court of Appeals for the District of Columbia (D.C. Cir.)
Case category
Federal Statutory Claims (US) → Clean Air Act (US) → Environmentalist Lawsuits (US)
Principal law
United States → Administrative Procedure Act (APA)United States → Clean Air Act (CAA)
At issue
Challenges to EPA’s interim final rule and final rule extending certain deadlines for standards of performance and emissions guidelines promulgated in March 2024 for sources in the oil and natural gas sector.
Topics
, ,
Documents
Filing Date
Document
Type
Topics
Beta
01/23/2026
Supplemental brief filed by Domestic Energy Producers Alliance in opposition to petitioners' motion for summary vacatur of EPA's interim extension rule.
Brief
01/23/2026
EPA filed supplement to opposition to motion for summary vacatur.
Brief
01/23/2026
Supplemental brief filed by petitioners in support of motion for summary vacatur.
Brief
01/05/2026
Court issued order on motion to govern further proceedings and motion to extend time to respond to motion for summary vacatur or to expedite.
In light of EPA's issuance of a final rule, the court ordered that the parties could file supplemental briefing on the motion to vacate the interim rule.
Decision
01/02/2026
Motions for leave to intervene granted.
Decision
12/05/2025
EPA's status report and motion to govern further proceedings filed.
Motion
07/31/2025
Petition for review filed.
Ten environmental organizations led by Environmental Defense Fund (EDF) filed a petition for review in the D.C. Circuit Court of Appeals challenging EPA’s rule extending certain deadlines for standards of performance and emissions guidelines for sources in the oil and natural gas sector promulgated in March 2024. A separate petition for review filed by Center for Biological Diversity was consolidated with the EDF-led challenge.
Petition
Summary
Challenges to EPA’s interim final rule and final rule extending certain deadlines for standards of performance and emissions guidelines promulgated in March 2024 for sources in the oil and natural gas sector.
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Group
Topics
Policy instrument
Risk
Impacted group
Just transition
Renewable energy
Fossil fuel
Greenhouse gas
Economic sector
Finance