Freight Hub Data Collection

This page last reviewed February 16, 2017

On July 17, 2015, Governor Brown issued Executive Order B-32-15 which directs State agencies to improve freight efficiency, transition to zero-emission technologies, and increase the competitiveness of California's freight system. To support this effort and other air quality, climate, and sustainability goals, California Air Resources Board (CARB or Board) staff has identified the need to collect specific facility and equipment information from California based freight hubs.

In March 2017, the Board heard public testimony on the South Coast Air Quality Management District's Plan and CARB's Mobile Source Strategy for the State Implementation Plan (SIP). The SIP recognizes the impact of freight facilities on both local and regional air pollution, and the need for further emission reductions. Consequently, the Board adopted Resolutions 17-7 and 17-8, as well as an addendum that provided additional direction to staff, including:

Within 12 months, "...staff shall return to the Board with concepts for an indirect source rule to control pollution from the large freight facilities including ports, railyards, warehouses, and distribution centers, as well as any identified alternatives capable of achieving similar levels of emission reductions."

This process will involve robust stakeholder outreach, including freight hub surveys, to identify potential options for reducing emissions from freight facilities and to understand the relative pros and cons of each option. The survey data will help staff develop concepts which will be presented to the Board in 2018.

What's New

The Draft Freight Hub Surveys for Seaports and Rail Yards are posted below.

The Draft Surveys are the most recent in a series of surveys that will be released by CARB this year. Each of the surveys will undergo a public comment period before being finalized and distributed. The types of facilities being surveyed are: truck stops, seaports, rail yards, warehouses, and distribution centers. The purpose of this effort is to collect specific facility and equipment information from California based freight hubs. The data gathered will help CARB staff better understand the activity that occurs at freight hubs in California, assess the potential for emission reductions, inform potential strategies for reducing those emissions, and direct funding assistance efforts.

Comments on the draft freight hub surveys and additional data sources may be emailed to Christopher Garcia at All comments on the Draft Seaport and Rail Yard Surveys must be submitted by September 4, 2017. Staff will then review comments, update the surveys as appropriate, and send out the final surveys for response in September.

Staff will post additional draft freight hub surveys for public comment following the schedule below. Please sign-up for our listserve to receive an email notification once they have been posted.

Freight Hub Survey Estimated Draft Survey Release Date For Public Comment Estimated Survey Distribution Date Please Complete Survey By:
Truck Stops - Survey Completed
If you would like a copy of this survey, please email Christopher Garcia at
January 2017 February 2017 April 1, 2017
DRAFT Seaports - Paper Survey August 2017 TBD TBD
DRAFT Rail Yard (Class I) - Paper Survey
DRAFT Rail Yard (Class III) - Paper Survey
August 2017 TBD TBD
Warehouses and Distribution Centers TBD TBD TBD


CARB held a public workshop on November 1, 2016 that included a freight hub survey component. For more information, please see Workshop materials below.


The Sustainable Freight Pathways to Zero and Near-Zero Emissions Discussion Document and California Sustainable Freight Action Plan include Freight Hub Data Collection as a State agency action for development and implementation over the next few years. In support of the Sustainable Freight effort and other air quality, climate, toxic exposure, and sustainability goals, CARB staff is evaluating potential methods to transition to a more efficient and less polluting freight transport system. As part of this evaluation, CARB staff has identified the need for specific facility and equipment information from California based freight hubs and is developing freight facility surveys for the following:

    freight hub collage image
  • Truck Stops
  • Seaports
  • Rail Yards
  • Warehouse/Distribution Centers

In addition to freight facility surveys, data collection may occur through various mechanisms, such as existing facility reporting requirements, funded academic research, and analysis of currently accessible data. The information collected will support planning efforts for the freight sector in order to increase efficiency, reduce emissions, and further reduce health risks.

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For more information, please contact Christopher Garcia at 916.322.8267 or via email.