California Department of Transportation
This site is produced by the Caltrans Division of Environmental Analysis (DEA) and Division of Local Assistance (DLA).

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Last Updated: Friday, July 24, 2015 10:42 AM

Standard Environmental Reference

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Sign up for the Standard Environmental Reference (SER) Subscription List to receive an automatic notice when updates have been made to the SER.


What is the SER? The Standard Environmental Reference (SER) is an on-line resource to help state and local agency staff plan, prepare, submit, and evaluate environmental documents for transportation projects. The SER contains information appropriate to all transportation projects developed under the auspices of Caltrans, and to all local agency highway or local streets and roads projects with funding or approvals by the Federal Highway Administration (FHWA).

The Standard Environmental Reference (SER) includes:

  • Caltrans Environmental Handbooks , including:
  • Other guidance documents, including:
    • Identifying Historic Landscapes
  • Forms, templates and graphics used during the environmental process, including:
  • Policy Memos that relate to the environmental process.
  • Topics Matrices - A fast way to link to key information for major technical issues.