California Air Resources Board

The State of California has many air quality, climate, and community risk reduction goals to achieve over the next thirty years. CARB staff is developing the 2020 Mobile Source Strategy to take an integrated planning approach to identify the level of transition to cleaner mobile source technologies needed to achieve all of California’s targets. Mobile sources and the fossil fuels that power them continue to contribute a majority of emissions of diesel particulate matter as well as smog- and particulate‑forming pollutants such as oxides of nitrogen (NO_x), and the largest portion of greenhouse gas emissions in California.  The actions contained in the Mobile Source Strategy will deliver broad environmental and public health benefits, as well as support much needed efforts to modernize and upgrade transportation infrastructure, enhance system-wide efficiency and mobility options, and promote clean economic growth in the mobile sector.

The 2020 Mobile Source Strategy was heard by the Board on October 28, 2021, and will be forwarded to the appropriate policy and fiscal committees of the California Legislature as required by California Senate Bill 44. Moving forward, the programs and concepts in the 2020 Mobile Source Strategy will be incorporated in other planning efforts, including the State Implementation Plans (SIP), the 2022 Climate Change Scoping Plan Update, and community emissions reduction plans developed as a part of Assembly Bill 617’s Community Air Protection Program. Specifically for criteria pollutants, the concepts in the 2020 Mobile Source Strategy will be translated into federally-enforceable SIP measures and commitments to be included in the 2022 State SIP Strategy to support attainment of federal ozone standards across the State, an important next step in programmatic development.

Board Hearing - October 28, 2021

• Notice of Public Meeting
• 2020 Mobile Source Strategy (October 28, 2021)
• Presentation
• Hearing Recording

Webinar - May 6, 2021

• Public Notice of Webinar and Release (Español)
• Revised Draft 2020 Mobile Source Strategy
  • Executive Summary (Español)
  • Fact Sheet (Español)
  • Public Comments Received
• Presentation (Español)
• Webinar Recording
• META Online Tool

Update to the Board - December 10, 2020

• Public Meeting Notice
• Draft 2020 Mobile Source Strategy
  • Vision Model - LDV Raw Data and Results
  • Public Comments Received
• Presentation
• Webcast Recording

Webinar - October 7, 2020

• Public Webinar Notice
• Workshop Discussion Draft 2020 Mobile Source Strategy
  • Public Comments Received
• Presentation
• Webinar Recording
• Unanswered Questions/Comments & Staff Responses

Release of DRAFT Mobile Emissions Toolkit for Analysis (META) - October 2, 2020

• Public Notice
• META (Updated DRAFT Version)

Beta Release of Mobile Emissions Toolkit for Analysis (META) - August 5, 2020

• Public Notice
• META (Beta Version)

Informational Update to the Board - April 23, 2020

• Public Agenda
• Presentation

Webinar - March 25, 2020

• Public Webinar Notice
• Presentation
• Presentation Script
• Webinar Recording
• Questions/Comments & Staff Responses

Workshops - February 25-26, 2020 [Postponed]

• Public Workshop Notice
  • Notice of Postponement - February 21, 2020