Vessel Speed Reduction for Ocean-going Vessels

This page last reviewed September 9, 2014

marine vessel
Welcome to the Vessels Speed Reduction (VSR) webpage. As part of our efforts under the Diesel Risk Reduction Plan, Goods Movement Emissions Reduction Plan, and Assembly Bill 32 - Greenhouse Gas Initiative, the Air Resources Board (ARB) staff is evaluating the need to develop an ocean-going vessel (OGV) speed reduction program. Ocean-going vessel speed reductions offer the possibility for significant reductions in emissions of oxides of nitrogen (NOx), oxides of sulfur (SOx), diesel particulate matter (PM) and carbon dioxide (CO2). A VSR program or measure could be an important element in improving air quality along California's coastline communities.

As part of this evaluation, the Air Resources Board contracted with the University of California, Riverside, College of Engineering-Center for Environmental Research and Technology to study the impacts of VSR on the in-use emissions of ocean-going vessels.  Click here to view the abstract from this study in Environmental Science and Technology and final report.

This webpage provides access to documents presented at public meetings and shares information on ARB's activities regarding VSR. If you would like to be notified of news related to VSR, including workshop notices and other information, subscribe to the Vessel Speed Reduction List Serve.