Bill · S. 1072· Senate(119-S-1072)
Stop CARB Act of 2025
- Introduced
- 3/14/2025
- Last activity
- 3/14/2025 — Read twice and referred to the Committee on Environment and Public Works.
- Sponsored by
- Mike Lee
- Cosponsors
- - 17 - 0
- Introduced
- In Committee
What this bill would do
This bill, known as the "Stop CARB Act of 2025," seeks to amend the Clean Air Act. It aims to eliminate a specific waiver currently found in the Act. The bill also removes the authorization for States to use new motor vehicle emission and engine standards that are identical to those adopted in California. Additionally, it prohibits States or political subdivisions from enforcing standards related to emissions from nonroad engines or vehicles, such as construction or farm equipment and locomotives. Finally, the Act would render any existing or pending waivers for these standards without force or effect.
Yes· 3 of 6
Would business owners be better off under this?+3
The reduction in regulatory requirements for nonroad engines may lower costs for businesses in construction and agriculture.
Would farmers be better off under this?+3
The bill removes state-level emissions standards for farm equipment, potentially reducing regulatory costs for farmers.
Does this invest in rural communities?+2
The bill reduces regulatory burdens on agricultural equipment, which may assist rural stakeholders.
The opposite· 3 of 10
Does this leave more decisions to the states?-6
The bill specifically removes the ability of states to adopt their own engine and vehicle emission standards.
Does this cut the pollution that drives climate change?-5
By eliminating California's ability to set stricter emission standards, the bill likely reduces incentives for lowering carbon emissions.
Does this better protect air, water and wildlife?-5
The bill strips states of their authority to enforce emissions standards for nonroad engines and vehicles.
Who it would affect, and how
Potential Positive Impacts for People
-
Prohibition on State Standards for Nonroad Engines or Vehicles: This provision prevents States or political subdivisions from adopting or enforcing requirements related to emissions from specific nonroad equipment, such as construction equipment, farm equipment, and locomotives (Section 2, subsection a).
-
Elimination of Waivers: The bill ensures that no previously issued waivers under section 209(b) of the Clean Air Act have any force or effect, and any pending applications for such waivers are considered denied (Section 2, subsection b).
Potential Negative Impacts for People
-
Repeal of Authorization for California Standards: The bill repeals the authorization that allows States to use new motor vehicle emission and engine standards that are identical to those in California (Section 3, subsection a).
-
Restriction on Nonroad Engine Regulation: By prohibiting States and political subdivisions from enforcing standards for emissions from nonroad engines or vehicles—including construction, farm, and locomotive engines—the bill removes the ability of those entities to regulate these specific types of equipment (Section 2, subsection a).
Groups and Interests Ranking
Every group the model scored this bill for, from -10 to +10. Hover a score for the reason it gave.
- Environment Energy And Infrastructure
- Improves Rural Development+2Improves Environmental Protections-5Reduces Carbon Emissions-5Reduces Fossil Fuel Production-4Increases Renewable Energy Investment-3
- Governance And Ideology
- Improves Interstate Commerce+1Increases Federal Power+1Increase States Rights-6
- Economy And Finance
- Improves Consumer Protection-2
- Demographic And Interest Groups
- Good For Business Owners+3Good For Farmers+3Good For Rural Residents+2Good For Urban Residents-3Good For African Americans-2Good For Children-2Good For Low Income Households-2
- 4/28/2026
- 1 Cosponsor added.
- 9/29/2025
- 1 Cosponsor added.
- 5/21/2025
- 1 Cosponsor added.
- 3/14/2025
- Read twice and referred to the Committee on Environment and Public Works.
- 14 Cosponsors added.
- Introduced in Senate
One bill Congress.gov lists as related to this one — companions in the other chamber, earlier versions, and bills this one absorbed or was folded into.
Mike CrapoRepublican · Idaho
Shelley CapitoRepublican · West Virginia
Bill CassidyRepublican · Louisiana
Kevin CramerRepublican · North Dakota
Ted CruzRepublican · Texas
Steve DainesRepublican · Montana
James JusticeRepublican · West Virginia
Cynthia LummisRepublican · Wyoming
Markwayne MullinRepublican · Oklahoma
Roger MarshallRepublican · Kansas
Bernie MorenoRepublican · Ohio
David McCormickRepublican · Pennsylvania
James RischRepublican · Idaho
Pete RickettsRepublican · Nebraska
Tim ScottRepublican · South Carolina
Dan SullivanRepublican · Alaska
Rick ScottRepublican · Florida