California Department of Transportation

SB 743 Implementation

About Us

SB 743 was signed in 2013, requiring a move away from vehicle delay and level of service (LOS) within California Environmental Quality Act (CEQA) transportation analysis.  It also requires the Governor’s Office of Planning and Research (OPR) to identify new metrics for identifying and mitigating transportation impacts.  OPR identified Vehicle Miles Traveled (VMT) per capita and VMT per employee as the new metrics for transportation analysis.

SB 743 affects Caltrans’ work in two ways:  First, our review of local land use projects’ potential impact to the State Highway System (SHS).  Second, our project delivery process for transportation projects on the SHS. 

It is anticipated that regulatory language changes to CEQA will be adopted in late 2017 by the Natural Resources Agency and that statewide implementation will occur in late 2019. However, Caltrans is already making process changes to evolve our transportation analysis to be more multimodal—assisting early implementation of SB 743 and also implementing our Strategic Management Plan 2015-2020.  And, we are providing resources for the statewide dialogue about SB 743 implementation.



CSTDM Data—Caltrans’ California Statewide Travel Demand Modal is available for use when calculating residential and office projects’ VMT.  A dedicated website is available to more easily access CSTDM data.


Planning Horizons

In July, 2016 Caltrans Planning Horizons hosted a discussion by City of San Francisco and City of Pasadena about their early adoption of VMT thresholds.  Cities and counties around California may be interested in hearing about the impetus for and experience of creating the VMT thresholds.


Research Efforts

Caltrans Division of Research and Innovation (DRISI) supports SB 743-related research efforts. 
UC Connect Shifting from LOS to VMT as the Measure of Transportation Impacts: Evaluating Prospects for Implementing Senate Bill 743


Caltrans Local Development-Intergovernmental Review (LD-IGR)

LD-IGR Interim Guidance —Revised in November, 2016 this high level desk reference for District staff refocuses Caltrans LD-IGR program attention on local development project’s VMT, appropriate transportation demand measures (TDM), and determining how best to address multimodal operational issues. Revisions are shown in red and primarily reflect:

  • We'll use and reference OPR's future approved technical advisory when it is released.
  • Clearer references to consistency with MTP/SCSs.
  • Clearer ties to the California Transportation Plan 2040.


Additional Resources

Evaluation of Sketch-Level Vehicle Miles Traveled (VMT) Quantification Tools.  National Center for Sustainable Transportation “researchers compare and evaluate VMT estimation tools across a sample of land use projects. They compare the results from different tools for each project, consider the applicability of methods in particular contexts and for different types of projects, and assess data needs, relative ease of use, and other practical considerations.”  The research is not done within a CEQA context, but it is interesting to review the use of the VMT estimation tools.




In addition to this Caltrans work, we coordinate with city, county, and regional SB 743 implementation efforts around the state.  To coordinate with Caltrans or for more information on our SB 743 implementation, contact:

Alyssa Begley
Caltrans SB 743 Program Implementation Manager
Desk: (916) 651-6882
Cellular:  (916) 261-3389