Legal resources for clean vehicle standards
Clean vehicle standards are reducing climate pollution, protecting our lives and health, creating American jobs, and saving us money at the gas pump. But protective standards at both the federal and state level are being challenged.
EDF is defending clean vehicle standards for cars, passenger trucks and heavy-duty vehicles in court. We will keep fighting for standards that reduce health-harming and climate destabilizing pollution.
The following actions are currently being challenged in court:
- EPA’s greenhouse gas standards for model years 2023 to 2026
- EPA’s reinstatement of a Clean Air Act waiver for California’s Advanced Clean Car program
- The National Highway Traffic Safety Administration’s (NHTSA) fuel economy standards for model years 2024 to 2026
- EPA’s decision to grant California a waiver for its Advanced Clean Trucks and Zero-Emission Airport Shuttle protections
EDF is participating in each of these cases in defense of the challenged actions. Explore our collection of filings from these lawsuits below.
EPA standards
Texas v. EPA (D.C. Cir. No. 22-1031) and consolidated cases
Post-Argument Filings – September 2023
- Private petitioner motion for leave to file supplemental brief
- NGO and state opposition to supplemental brief
- EPA opposition to supplemental brief
Post-Argument Filings – September 2023
Supplemental Filings – July 2023
- Petitioner states’ 28(j) letter
- Environmental Protection Agency response to 28(j) letter
- EDF and others response to 28(j) letter
Final Briefs – March 2023
- Environmental Protection Agency
- EDF and others, California and other states and cities
- Alliance for Automotive Innovation
- NCAT, Advanced Energy Economy, and others
- Institute for Policy Integrity final amicus brief
- Texas and states
- Texas and states final reply brief
- Private petitioners
Reply Briefs – April 2023
Respondent-Intervenors’ Briefs – March 2023
- EDF and others, California and other states and cities
- Alliance for Automotive Innovation
- NCAT, Advanced Energy Economy, and others
Amicus Briefs for Respondents – March 2023
- Former EPA Managers
- Members of Congress
- Institute for Policy Integrity
- International Council on Clean Transportation
- American Thoracic Society et al.
- Constitutional Accountability Center
- Consumer Reports
- National League of Cities and the U.S. Conference of Mayors
Respondent’s Brief – February 2023
Amicus Briefs for Petitioners – November 2022
- State of West Virginia et al.
- Two Hundred for Housing Equity
- Pacific Legal Foundation
- California Business Roundtable et al.
- Sulphur Institute
- Western States Petroleum Association et al.
- Texas Oil & Gas Association et al.
- Truck Renting and Leasing Association
- ConservAmerica
- Buckeye Institute
Petitioners’ Briefs – November 2022
Filings on Case Management – August 2022
Statements of Issues – April 2022
- Texas and other states
- Competitive Enterprise Institute
- State Soybean Associations and others
- American Fuel and Petrochemical Manufacturers
- Clean Fuels Development Coalition and others
- Energy Marketers of America
Motions to Intervene – March 2022
- EDF and others
- California and 21 other states and cities
- Alliance for Automotive Innovation
- Advanced Energy Economy and others
- National Coalition for Advanced Transportation
Petitions for Review – February 2022
CA waiver
Ohio v. EPA (D.C. Cir. No. 22-1081) and consolidated cases
Decision
Post-Argument Filings – October 2023
- Private petitioner motion for leave to file supplemental brief
- Private petitioner proposed supplemental brief
- California and other states opposition to supplemental brief
- EPA opposition to supplemental brief
Oral Argument – September 2023
Supplemental Filings – May 2023
- Petitioner states’ 28(j) letter
- California and other states’ response to 28(j) letter
- Environmental Protection Agency response to 28(j) letter
Final Briefs – April 2023
- Environmental Protection Agency
- EDF and others
- California and other states
- Automakers and others
- Ohio and other states
- Ohio and other states final reply brief
- Private petitioners
- Private petitioners’ final reply brief
Reply Briefs – March 2023
Respondent-Intervenors’ Briefs – February 2023
Amicus Briefs for Respondents – January 2023
- Administrative Law Professors
- California Climate Scientists
- American Thoracic Society et al.
- Professor Leah Litman
- South Coast Air Quality Management District
- Senator Carper and Representative Pallone
Respondent’s Brief – January 2023
Amicus Briefs for Petitioners – November 2022
- Texas Oil & Gas Association et al.
- Two Hundred for Housing Equity et al.
- Western States Petroleum Association et al.
- Western States Trucking Association
- Owner-Operator Independent Drivers Association
- Sulphur Institute
- California Business Roundtable et al.
- American Commitment et al.
- ConservAmerica
Petitioners’ Briefs
Filings on Case Management – August 2022
Statements of Issues – June 2022
- Ohio and other states
- State Soybean Associations and others
- American Fuel and Petrochemical Manufacturers
- Clean Fuels Development Coalition and others
Motions to Intervene – May/June 2022
- EDF and others
- California and 19 other states and three cities
- Automobile manufacturers
- Advanced Energy Economy and others
- National Coalition for Advanced Transportation
Petitions for Review – May 2022
NHTSA standards
NRDC v. NHTSA (D.C. Cir. No. 22-1080) and consolidated cases
Post-Argument Filings – September 2023
Amicus Briefs for Respondents – April 2023
Respondent-Intervenors’ Briefs – April 2023
Respondent’s Brief – March 2023
Amicus Briefs for Petitioners – December 2022
- California Business Round Table et al.
- ConservAmerica
- Texas Oil & Gas Association et al.
- The Alliance for Automotive Innovation
- The Sulphur Institute
- The Two Hundred for Homeownership et al.
- West Virginia et al.
- Western States Petroleum Association et al.
Petitioners' Briefs – November and December 2022
- Clean Fuels Development Coalition et al.
- American Fuel and Petrochemicals Manufacturers and States
- Natural Resources Defense Council
Filings on Case Management – August 2022
Statements of Issues – June/August 2022
Motions to Intervene – July/August 2022
- EDF and others
- California and other states and cities
- National Coalition for Advanced Transportation and others
- Clean Fuels Development Coalition and others
Petitions for Review – May/June 2022
CA trucks
Western States Trucking Association v. EPA (D.C. Cir. No. 23-1143)
Court Order – December 2023
Replies to Motion to Hold Case in Abeyance – December 2023
- State Response to Motion for Abeyance
- Private Petitioner Response to Motion for Abeyance
- EPA Reply on Motion for Abeyance
Motion to Hold Case in Abeyance – November 2023
Amicus Briefs for Petitioners – November 2023
Petitioner’s Briefs – November 2023
Statements of Issues – July 2023
- Western States Trucking Association et al.
- Iowa and other states
- American Fuel & Petrochemical Manufacturers et al.
- Owner-Operator Independent Drivers Association
- The 200 for homeownership et al.
- Soybean associations
Motions to Intervene – June 2023
- EDF and others
- California and other states and cities
- East Yard Communities for Environmental Justice et al.
Petitions for Review – June 2023
Our experts
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Peter Zalzal
Distinguished Counsel & Associate Vice President, Clean Air Strategies
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Alice Henderson
Director & Lead Counsel, Transportation & Clean Air
MEDIA CONTACT
Sharyn Stein
(202) 572-3396 (office)
(202) 905-5718 (mobile)