Skip to content
The Climate Litigation Database

California v. United States

Geography
Year
2025
Document Type
Litigation
Part of

About this case

Filing year
2025
Status
Opening brief filed by Western States Trucking Association and Construction Industry Air Quality Coalition, Inc.
Docket number
25-8013
Court/admin entity
United StatesUnited States Federal CourtsUnited States Court of Appeals for the Ninth Circuit (9th Cir.)
Case category
Constitutional Claims (US)Other Constitutional Claims (US)Federal Statutory Claims (US)Clean Air Act (US)Environmentalist Lawsuits (US)
Principal law
United StatesAdministrative Procedure Act (APA)United StatesClean Air Act (CAA)United StatesCongressional Review ActUnited StatesSeparation of Powers DoctrineUnited StatesTake Care ClauseUnited StatesTenth AmendmentUnited StatesUltra Vires
At issue
Challenge to Congressional Review Act resolutions that “disapproved” Clean Air Act preemption waivers granted by the U.S. Environmental Protection Agency for California’s Advanced Clean Trucks, Advanced Clean Cars II, and Omnibus Low NOx regulations.
Topics
, ,

Documents

Filing Date
Document
Type
Topics 
Beta
01/15/2026
Opening brief filed by Western States Trucking Association and Construction Industry Air Quality Coalition, Inc.
Brief

Summary

Challenge to Congressional Review Act resolutions that “disapproved” Clean Air Act preemption waivers granted by the U.S. Environmental Protection Agency for California’s Advanced Clean Trucks, Advanced Clean Cars II, and Omnibus Low NOx regulations.

 Topics mentioned most in this case  
Beta

See how often topics get mentioned in this case and view specific passages of text highlighted in each document. Accuracy is not 100%. Learn more

Group
Topics
Target
Policy instrument
Just transition
Fossil fuel
Economic sector
Finance