order

Courts Holding Challenges to Trump-Era Vehicle Standards and Policies in Abeyance While Challenges to Biden Reversals Proceed

Proceedings challenging the National Highway Traffic Safety Administration's rule preempting state limits on tailpipe greenhouse gas emissions and zero-emission vehicle mandates and EPA's withdrawal of California's waiver.

Union of Concerned Scientists v. National Highway Traffic Safety Administration

Litigation

Sabin

Parties Dismissed Challenges to Trump Administration Actions to Preempt State Vehicle Standards

stipulation

Union of Concerned Scientists v. National Highway Traffic Safety Administration - stipulation

response

Union of Concerned Scientists v. National Highway Traffic Safety Administration - response

motion

Union of Concerned Scientists v. National Highway Traffic Safety Administration - motion

States Urged D.C. Circuit to Consider Constitutionality of California’s Clean Air Act Waiver

notice

Union of Concerned Scientists v. National Highway Traffic Safety Administration - notice

Union of Concerned Scientists v. National Highway Traffic Safety Administration - order

status report

Union of Concerned Scientists v. National Highway Traffic Safety Administration - status report

D.C. Circuit Granted Biden Administration Motion for Abeyance in Cases Challenging Actions Preempting State Regulation of Greenhouse Gas Emissions from Vehicles

reply

Union of Concerned Scientists v. National Highway Traffic Safety Administration - reply

opposition

Union of Concerned Scientists v. National Highway Traffic Safety Administration - opposition

Automotive Trade Group Withdrew from Cases

GM, Nissan Withdrew from Defense of Rule Preempting State Low-Carbon Vehicle Standards

brief

Union of Concerned Scientists v. National Highway Traffic Safety Administration - brief

amicus brief

Union of Concerned Scientists v. National Highway Traffic Safety Administration - amicus brief

Brief Filed in Support of EPA and NHTSA’s Actions Restricting State Authority to Regulate Vehicle Emissions

Opening Briefs Challenged Lawfulness of EPA and NHTSA’s Actions to Restrict California and Other States’ Authority to Regulate Vehicle Greenhouse Gas Emissions

Petitioners Sought More Time for Briefing in Challenge to Vehicle Standard Preemption Actions

Union of Concerned Scientists v. National Highway Traffic Safety Administration - Other

D.C. Circuit Declined to Speed Up or Slow Down Challenges to Withdrawal of California Waiver and Preemption of State Authority to Regulate Vehicle Greenhouse Gas Emissions

Challengers Asked D.C. Circuit to Put Proceedings on Hold

statement of issues

Union of Concerned Scientists v. National Highway Traffic Safety Administration - statement of issues

EPA, DOT, and Automakers Sought to Speed Up Challenge to Vehicle Emission Standard Preemption Actions

motion to intervene

Union of Concerned Scientists v. National Highway Traffic Safety Administration - motion to intervene

petition for review

Union of Concerned Scientists v. National Highway Traffic Safety Administration - petition for review

Filing Year For Action