Enforcement Data Portal
Executive Summary of Enforcement Activities in 2025
CARB remains committed to continuing the important work of improving our State’s air quality and reducing harmful pollutants that contribute to poor health outcomes and worsen the impacts of climate change. The public health, air quality, and climate challenges that California faces require urgent action, and CARB addresses these challenges through innovative policies, technological advancements, and a commitment to equity ensuring all communities, especially those most vulnerable and most impacted, benefit from our efforts.
CARB’s enforcement program is a critical part of these efforts, taking action to ensure compliance with regulatory requirements so that the intended outcomes from CARB’s programs are achieved. Within this broader role, focusing enforcement efforts in communities disproportionately impacted by air pollution and/or burdened by high cumulative exposure remains a significant priority. Through our community-focused enforcement efforts, CARB’s Enforcement Division continues to partner with community members to understand their experiences and priorities, and to help guide our enforcement activities to address pollution concerns.
The information provided in the highlights below summarizes the work CARB has accomplished in communities and across California, and the actions being taken in its enforcement programs.
Highlights from 2025 include:
Settling with Hino Motors, Ltd., a subsidiary of Toyota Motor Corporation (Hino) for using undisclosed and unapproved auxiliary emission control devices on its 2010-2019 model year J05E and J08E heavy duty engines (approximately 16,000 engines in California and over 110,000 nationally), that caused excess emissions and harm to California's environment. Of the total penalty assessed, the State will receive $82.5 million in civil penalties and $111.8 million directed to projects to mitigate excess emissions caused by the violations. Hino has also agreed to correct a majority of the engines affected at no cost to the vehicle owners.
Settling an additional 4,683 enforcement actions totaling $21,223,101 in penalties assessed. This includes:
- Settling two enforcement actions for violations of the At-Berth Shore Power Regulation totaling more than $13 million with approximately $11.25 million directed to projects to mitigate the excess emissions caused by the violations and $1 million directed to a Supplemental Environmental Project.
- Settling eight enforcement actions involving violations of engine, parts, and vehicle certification requirements resulting in more than $2 million in penalties assessed.
- Settling 14 enforcement actions for more than $2 million for violations of CARB’s climate programs including the Refrigerant Management Program, Landfill Methane Regulation, Sulfur Hexafluoride Regulation, and Low Carbon Fuel Standard. Of the $2 million, approximately $456,000 funded Supplemental Environmental Projects.
Inspections, audits, and screenings:
- Inspecting over 21,000 vehicles and marine vessels with 58% located in overburdened communities.
- Conducting 66 mobile PEAQS deployments on roadsides and in communities across the State that screened 46,171 vehicles and resulted in 759 citations for noncompliance with heavy-duty diesel truck regulations.
- Resolving more than 7,000 streamlined truck enforcement actions involving violations of the Clean Truck Check Program totaling approximately $535,000 in penalties.
- Conducting more than 3,600 inspections for compliance with the Cargo Tank Vapor Recovery Program.
- Coordinating with other local agencies to conduct joint inspections at 28 landfills and 12 oil and gas facilities throughout the State.
Other:
- Diverting $2,306,108 to 18 different Supplemental Environmental Projects (SEP) throughout the State. Of that, $2,081,387 went to projects in California’s AB 617 communities. SEPs are community-based projects funded by violators instead of paying a portion of the penalties to the State for violations of California's air pollution control requirements.
- Collaborating with air districts and communities to complete two additional community emission reduction plans (CERPs). These communities are Northern Imperial County and South Sacramento/Florin. The CERPs will help guide enforcement activities in these communities to address environmental violations that are recognized and prioritized by each community. In addition, staff is coordinating with the Bay Area Air District to support the development of a CERP for the Bayview Hunters Point Community.
- Engaging with community groups including Rising Sun Center for Opportunity in Madera to strengthen community partnerships, share information, and collaborate on community-focused initiatives.
- Issuing more than 14,000 registrations from applications received and closed in 2025, for new and renewed portable engines and equipment units operating in the State to ensure compliance with emissions requirements.
Showcases
Shore Power Enforcement
See inside CARB's shore power enforcement program using our new interactive dashboard.
Community-Focused Enforcement
Learn more about how CARB Enforcement is creating targeted responses to community concerns that are informed by communities, partnerships, and data.
Community-Focused Enforcement Showcase (English)
Exhibición de la Aplicación de La Ley Enfocada en Las Comunidades (Español)
Enforcing the Heavy-Duty Inspection & Maintenance Program
Learn how CARB is enforcing the Heavy-Duty Inspection & Maintenance Program (also known as the "Clean Truck Check"), which went into effect January 1, 2023.
Map Enforcement Data
Use the Enforcement Data Visualization System (EDVS) to visualize CARB's enforcement activities across the state, including field inspections and case settlements, on a map interface.
Enforcement Archives
Data Explorer
Get data on CARB's enforcement activities by selecting a category below.
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*Historical downloads are snapshots from the time of publication and may differ from current data online due to ongoing refinements and reporting updates.