California Department of Transportation
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Last Updated: Monday, December 15, 2014 2:35 PM

SER - What's New

Postings on this page will be highlighted for 90 days.

Postings are in chronological order with the most recent listed first. Updates may also be viewed under specific SER volumes and sections. Postings older than 90 days can be accessed on the Posting History page.

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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.

View updates by SER sections

Click the links below to view recent updates made to specific sections of the SER.

Volume 1 - General

  • 12-03-2014: The Environmental Management Office has updated Chapter 23 (Farmlands) in Volume 1 of the SER.  It includes updated farmland definitions, an updated flow chart, more information on completing NRCS Forms CPA-106 and Form AD-1006, and additional information on Williamson Act coordination with the California Department of Conservation. Additionally, both the CPA-106 and the Form AD-1006 have been added to the SER Forms and Templates page.

Volume 2 - Cultural

No updates at this time

Volume 3 - Biological Resources

No updates at this time.

Volume 4 - Community Impact Assessment

No updates at this time.


No updates at this time.

Emergency Projects Environmental Process and Requirements

Other Guidance

Forms & Templates

  • 12-03-2014:The Environmental Management Office has updated the Air Quality Conformity Findings Checklist to include a hyperlink that provides additional information on applicable PM control measures and to clarify the conformity documentation required for the project file.
  • 11-14-2014: The Natural Environment Study (Minimal Impacts) (NESMI)) has been revised by the Biological Consultancy Group (BCG). Effective December 1, 2014, the revised outline is to be used to develop all new NESMI reports for Caltrans, Local Assistance, and Oversight projects. If you have any questions, please contact Jennifer Gillies at (916) 653-6976.
  • 11-05-2014: The CE Checklist has been updated to include four new Categorical Exclusions under 23 CFR 771.117(c), three CEs that have been moved FROM the “d list” TO the “c list, and one new Categorical Exclusion under 23 CFR 771.117(d). These CEs are effective 11-05-2014.


No updates at this time.

Scoping Tools

No updates at this time.

Training on Demand

No updates at this time


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Contact SER Staff

No updates at this time

Posting History