Last Updated on February 20th, 2025.
The heavy equipment industry continues to navigate shifting EV emissions by state, with significant developments at both federal and state levels. Recent legal challenges have led to the rollback of some of California’s most aggressive emissions mandates, creating uncertainty for fleet operators nationwide. Below, we provide an updated overview of federal policies and state-specific changes.
Federal Emissions Regulations Updates
The administration remains committed to strengthening emissions regulations, but legal and political challenges have slowed implementation. The Environmental Protection Agency (EPA) is reviewing new greenhouse gas (GHG) and nitrogen oxide (NOx) standards for heavy-duty trucks, which may align with California’s previous mandates.
However, with California’s regulatory power in question, industry groups are pushing back against federally imposed rules, arguing that aggressive emissions targets could increase costs and disrupt supply chains. Fleet operators should prepare for delays or modifications to upcoming federal emissions mandates.
State-by-State Emissions Regulations Updates
Several states have followed California’s lead in adopting stricter emission standards by state, but recent court rulings could change their implementation timelines. Here’s the latest update:
California: ACT and Omnibus Rule Impacted by Policy Rollbacks
California has long been a leader in emissions reductions, but a recent legal challenge has significantly altered the state’s trajectory.
- Governor Gavin Newsom’s ban on gas-powered vehicles has been overturned, halting the transition toward a full zero-emission vehicle (ZEV) market.
- The Advanced Clean Trucks (ACT) rule, which required manufacturers to increase ZEV truck sales, is now under review, with expected rollbacks or delays.
- The Omnibus rule, designed to reduce NOx emissions from heavy-duty trucks, also faces legal scrutiny. While CARB initially pushed for full enforcement by 2025, compliance deadlines may now be extended.
With these setbacks, California’s ability to set its emissions standards is questioned. This could have nationwide implications, as several states have adopted California’s regulations as a model.
Oregon
Oregon had previously committed to California’s ACT rule but may reassess its stance in light of the recent rollback. The state’s Department of Environmental Quality (DEQ) will issue a revised implementation timeline in the coming months.
Massachusetts
Massachusetts remains committed to stricter emissions regulations but may adjust deadlines following California’s legal challenges. In 2025, the state is expected to focus more on incentives rather than strict mandates.
Washington
Washington has proactively adopted California-aligned EV emissions by state, but state lawmakers are now debating whether to proceed with previously planned restrictions. The Clean Vehicles Program may shift towards voluntary compliance and incentive-based solutions.
New York
New York has consistently supported aggressive EV emissions by the state, but recent court rulings could force it to reconsider its approach. Fleet operators should watch for possible changes in electric truck sales requirements.
New Jersey
New Jersey had taken a more moderate approach to EV emissions by state, focusing on incentives rather than strict mandates. The latest developments in California may reinforce this strategy, keeping New Jersey’s policies flexible for fleet operators.
Looking Ahead
The recent rollback of California’s most stringent EV emissions by state marks a significant shift in national policy. Fleet operators should stay informed as federal and state governments reassess their strategies in response to these legal challenges.
With uncertainty surrounding California’s leadership on emissions policy, 2025 may bring more flexibility in compliance requirements. However, businesses should remain prepared for ongoing regulatory shifts.
Learn more about our electric offerings here. Stay tuned for our next update as we track the latest developments in truck emissions regulations.
*Custom Truck One Source cannot and does not provide legal advice. The information provided represents Custom Truck’s best information regarding the changing regulatory landscape as of February 2025. All facts and laws are subject to change. Contact your legal counsel for the current state of the law and for all legal advice.
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