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California Air Resources Board (CARB) staff will hold a virtual meeting on November 17, 2026, from 10:30 a.m.–12:00 p.m. to gather feedback on the Updated Technology Assessment for OGVs, which was prepared for CARB by the University of California, Irvine (UCI), and published on CARB’s webpage in June 2026. CARB staff will also share preliminary insights from the stakeholder engagement survey initiated at our February 4, 2026, public workshop and closed on April 30, 2026.
All members of the public are welcome to participate in this feedback session. However, CARB is specifically seeking technical feedback from industry, researchers, and experts on topics including, but not limited to:
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Anticipated future direction of maritime industry technologies and practices to reduce OGV emissions (in transit).
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Emission‑reduction technologies or alternative fuels you are currently considering.
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Technologies or fuels under development that were not included in the UCI assessment.
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Key research gaps or areas needing further analysis to support regulatory development.
Input provided during this meeting will help inform CARB’s next steps and guide future research priorities related reducing emissions from OGVs in transit.
Special accommodation request
Note on language interpretation services
Contact us at OGVintransit@arb.ca.gov at least 10 business days before the meeting date to request language interpretation services (for example, Spanish, American Sign Language, etc.). You may request these services for yourself or on behalf of someone else. Note that language interpretation will only be provided when at least 5% of anticipated attendees request such services.
Background
California’s ports and coastal communities still struggle with air pollution from ocean‑going vessels (OGVs). Even with current rules, OGVs are expected to become one of the largest mobile sources of pollution in the state by 2037. Cutting toxic pollutants, criteria pollutants, and greenhouse gases from these ships is important for protecting public health, meeting federal air quality standards, and reaching California’s climate goals. Many frontline communities face higher health risks because they live so close to the pollution. CARB needs to take more steps to reduce this harm.
CARB has two rules ‑ the OGV At Berth Regulation and Vessel Fuel Regulation ‑ that reduce emissions of NOx, PM, and SOx and also lower greenhouse gases. In December 2022, CARB released the Interim Evaluation report showing that more emission reductions are needed, especially when ships are moving, maneuvering, or anchored near ports. These “in‑transit” emissions make up about 95% of all OGV emissions and are a major source of NOx and PM. CARB’s 2022 State Strategy for the State Implementation Plan also highlights the need for more action. Because air quality improvements are urgent, CARB is exploring new regulatory and voluntary options to further reduce pollution from OGVs in‑transit in California waters.
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