
Capitol Hill has a major issue with how much authority the federal government has over California’s powerful precedent for setting its own vehicle emissions standards. The four Republican senators have introduced a pair of joint resolutions under the Congressional Review Act that would repeal some Environmental Protection Agency waivers that back California’s environmental policies. The initiative could impact vehicle manufacturers, dealerships, consumers, and businesses that use equipment subject to California’s regulations.
The campaign focuses on EPA rulings that enabled California to set stricter emissions standards than the federal government. Automakers have the ability to keep a fairly distinct product line for their California market separate from the rest of the country, so lawmakers who object to the waivers say California’s rules can have a significant impact on the rest of the country’s vehicle market. That results in “general requirements” that are not created by Congress in any federal law, they argue.
The controversy isn’t limited to passenger vehicles. The resolutions also cover rules that impact small off-road engines and equipment typically employed by landscapers, contractors and other small businesses. The debate therefore extends to several portions of the mechanical and automotive communities, and leaves manufacturers and dealers uncomfortable with the prospect of new federal and state mandates.

1. Four Republican Senators Target California Waivers
The coordinated effort is led by Wyoming Sen. Cynthia Lummis, Missouri Sen. Eric Schmitt, Ohio Sen. Jon Husted and Nebraska Sen. Pete Ricketts. All 50 of the senators have introduced a Congressional Review Act resolution targeting a specific EPA waiver that is tied to California’s emissions policies. What they all agree on is that the state of California has been given the power to set rules that have consequences that riple far outside its borders.
National Market Impact:
- Four Republican senators lead effort
- Separate EPA waivers face challenges
- California rules affect national markets
- Manufacturers adjust nationwide compliance strategies
- Federal standards remain central concern
Manufacturers do not typically develop a separate program for California, the lawmakers state. Rather, enterprises will create products and compliance frameworks that support California rules and regulations in addition to federal regulations. But that dynamic, they say, extends California’s regulations to consumers and businesses around the nation even if they’re not subject to California law.
Their resolutions are thus expressed as a desire to reassert a more clearly defined federal mandate for national vehicle standards. The senators argue that key national needs should be expressed in Congress instead of state laws which are authorized by federal waivers. Under their design, California’s emissions permit is at the heart of the congressional debate.

2. Congressional Review Act Provides the Legislative Path
The Congressional Review Act provides Congress a review process for some executive agency actions. A key aspect of the law in this case is that a resolution of a CRA can be passed by a simple majority in the Senate the 60 votes that are typically needed to prevent a filibuster in the Senate from stopping a major bill instead of a more stringent vote.
Legislative Challenge:
- Congress reviews executive agency actions
- Senate approval can require majority
- Resolutions can overturn agency actions
- Future similar rules face restrictions
- EPA waivers become legislative targets
With a CRA resolution becoming law, the action under review by the agency may be overturned. The agency is also barred from promulgating a future rule that is “substantially similar” without additional authorization from Congress. That provision lends meaning to the resolutions other than the current waivers at issue.
The CRA offers a relatively straight-forward path for the senators to attack EPA decisions that gave California regulatory control over its decisions. The strategy is to concentrate on one-by-one waiver requests while simultaneously working on a systemic shift in the way California’s environmental regulations impact manufacturers and businesses in other states.

3. Husted Challenges the Advanced Clean Cars II Waiver
Senator Jon Husted is pressing for an exception at the EPA involving California’s Advanced Clean Cars II regulations. The waiver enabled California to proceed with regulations such as those that phase out sales of new gasoline-powered cars. Husted has stated that Ohio consumers shouldn’t be essentially forced to adhere to a regulatory method developed in Sacramento.
California Vehicle Standards:
- Husted targets Advanced Clean Cars II
- Waiver supports California vehicle standards
- Gasoline vehicle phaseout remains central
- Ohio consumers face broader implications
- National automakers manage multiple standards
It’s important to automakers because California is a big market. If a manufacturer is selling cars in multiple states, he or she needs to take California’s requirements into consideration, as well as the requirements of the states that adopt California’s requirements. That can have an impact on product planning, compliance plans, and the mix of vehicles available across dealer networks.
Husted’s resolution exemplifies a growing worry of those who oppose California’s policy that state law can have nationwide impact. His view is that the federal government should make decisions on vehicle availability, technologies, and costs for consumers, not indirectly, through California’s waiver authority.

4. Lummis Targets Rules Covering Small Engines
Senator Cynthia Lummis is working on a 2025 EPA waiver for California’s program to eliminate gasoline-powered small off-road engines. Some examples of equipment covered are lawn mowers, chainsaws, leaf blower, and power washing. Lummis believes that the Golden State shouldn’t have the ability to set standards that could have a significant impact on families and small businesses nationwide.
Manufacturer Compliance:
- Small off-road engines face regulations
- Lawn equipment included under rules
- Businesses rely on engine-powered equipment
- Equipment manufacturers face compliance changes
- National effects remain major concern
These rules are of special interest for companies that rely on small engine powered equipment to get the job done. When changes in emissions standards create equipment and compliance decisions, the landscape industry, including landscaping companies, contractors, landscape maintenance crews and specialized trades, can be impacted. As a result, industry has been interested in the congressional moves to revisit the California waiver.
The case study is a good example of the consequences of emissions policy going beyond cars. For the national automotive market, there is a focus on the rules that impact on larger engines, but the rules that impact on smaller engines can affect the equipment manufacturers, dealers and businesses. Lummis’ resolution adds those concerns to the broader issue of California’s powers.

5. Ricketts Questions California’s Clean Car Framework
Senator Pete Ricketts has submitted a resolution targeted at the previous EPA waiver associated with the California’s clean car framework and Advanced Clean Cars I waiver. He believes that California’s policies have imposed extra costs on citizens and businesses in other states, especially in terms of their transportation and equipment requirements.
Agricultural Equipment:
- Ricketts challenges earlier EPA waiver
- Advanced Clean Cars I targeted
- Nebraska industries face different needs
- Agriculture depends on practical equipment
- California rules influence wider markets
Nebraska offers a significant piece of the puzzle in giving Ricketts’ perspective because the transportation, machinery, and practical equipment selections for agriculture and other industries are key factors. The regulations that have been put in place for a large coastal region can affect businesses in agricultural parts of the region differently. His resolution thus narrows its attention to the broader implications of California’s approach to regulation.
Ricketts also takes issue with the impact policies in California can have on the national market. Product changes that comply with the California standards may impact the vehicles and equipment sold in other areas. His stance is that federal legislation should be used to deal with regulatory impacts from around the country, not state-specific requirements with EPA waivers.

6. Schmitt Challenges the Older Greenhouse Gas Waiver
California’s 2009 EPA waiver, which allowed the state to have greenhouse gas emissions standards for new passenger vehicles starting with the 2009 model year, is being challenged by Senator Eric Schmitt. The waiver has been instrumental in California’s efforts to retain standards different than those set by the federal government.
Greenhouse Gas Rules:
- Schmitt targets 2009 EPA waiver
- Greenhouse gas standards remain relevant
- California maintains separate requirements
- Automakers face differing regulatory frameworks
- Older waiver still affects markets
Schmitt says that the regulatory power that resulted from those decisions remains to impact drivers and manufacturers outside of California. When designing and selling vehicles, automakers will have to consider the requirements, and consumers may have various options available due to the interplay between state and federal regulations.
The resolution underscores EPA’s enduring relevance to the modern auto industry. The decision was made many years ago, but the effects of the regulation have still been a part of the debate concerning emissions policy. Schmitt’s question is a more mature one, but one with a strong impact on the ongoing congressional campaign.

7. EPA Action Has Already Escalated the Dispute
The Senate resolutions come after the Environmental Protection Agency took action in the summer. The agency has submitted a number of rules for vehicle emissions in California to Congress in June for possible repeal under the Congressional Review Act, which is controlled by Republicans. The EPA contended that some of the waivers awarded during previous administrations were done without proper submission for congressional review.
Federal Court Cases:
- EPA sends California rules to Congress
- Congressional repeal process gains momentum
- California challenges EPA approach
- Federal court cases add uncertainty
- Waiver review becomes legal dispute
In response, California officials attacked this in federal court. The state says that old “environmental waivers” cannot just be presented to Congress for CRA consideration after they were enacted. That legal claim adds a new source of doubt to the congressional push.
The lawsuits could prove to be as significant as the Senate votes. If the Congress approves the resolutions, legal challenges may prove to be the deciding factor, as to whether the federal government has followed the proper procedure. The result could affect the scrutiny of agency waivers in future conflicts with the state environmental authority.
8. Earlier Congressional Action Sets a Precedent
The ongoing effort is in response to congressional action last year, which overturned three EPA waivers that gave California the power to set emissions standards for trucks, buses and passenger cars. That old campaign showed just how far Congress can go with the CRA to push back against California’s regulations.
Automaker Concerns:
- Previous CRA action established precedent
- Three earlier waivers were rescinded
- Truck and bus standards included
- Automakers sought regulatory relief
- California challenged congressional action
Major automakers such as Toyota and General Motors had been lobbying for some of California’s toughest rules to be lifted. The engagement of this was a reflection of the reality of manufacturers’ challenges in meeting different regulations. California then sued in federal court to overturn the congressional action, and the case is still pending.
The previous waiver then, is therefore an important background check on the latest resolutions. The current campaign isn’t about one rule. Instead, it is part of an ongoing battle over the scope of California’s power and the federal government’s willingness to take a second look at the waivers that have been based on that power.

9. Automakers and Dealers Face Changing Compliance Rules
The controversy over emissions has personal ramifications for carmakers and dealerships. California’s regulations have mandated higher percentages of ZEVs to be sold to dealers in California and other jurisdictions that adopt California’s regulations. Any changes to those requirements may impact inventory planning and vehicle distribution.
Manufacturer Flexibility:
- Zero-emission vehicle requirements vary
- Dealer inventory planning may change
- Manufacturers could gain flexibility
- Local demand could guide inventory
- Legal uncertainty complicates planning
If the targeted waivers are repealed, it would provide more flexibility to manufacturers and dealerships in terms of deciding which vehicles to manufacture, ship and stock. Dealers might also be able to shift their new-vehicle lineup based on local demand instead of regulations related to California’s regulatory framework.
Meanwhile, companies are not easily able to adjust to the proposed changes as court battles are pending. Congress and the courts should be taken into account by manufacturers and dealers in their long-term inventory and production decisions. The uncertainty makes planning more difficult during an important time of change in the automotive sector.

10. The Broader Fight Over Federal and State Authority
The Senate resolutions reflect a broader discussion about the manner in which environmental and vehicle regulations should be set in the USA. California has argued that more stringent emissions standards provide consumers with long-term value by reducing fuel consumption and other benefits. Critics say the state’s power is what gives the city a reason to be able to force the hands of other markets and industries nationwide.
National Regulatory Impact:
- Federal versus state regulatory authority
- California seeks stronger emissions standards
- Opponents challenge nationwide influence
- Automakers face strategic uncertainty
- Congressional and court processes continue
The disagreement also coincides with the Trump administration’s efforts to make a broader push for changes in federal transportation policy. Federal fuel-economy requirements are under review and policies are also changing for electric vehicles and for traditional gasoline-powered vehicles. Such shifts add to the uncertainty for manufacturers in their course of product adjustments.
The result will influence future compliance decisions and product selections for equipment manufacturers, automotive companies, dealerships and small businesses. The Senate resolutions now bring several important EPA waivers to the attention of Congress, and federal court cases are pending as the legislative process unfolds. It’s really a debate more than just about California’s emissions rules, and more about where the authority to set up national standards for cars should lie and how it should be used.
