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California Science and Engineering Fair
Welcome to the 2025 California Science and Engineering Fair
Volunteer Judge The Fair Support

The California Science and Engineering Fair Foundation is excited to announce that CSEF 2025 will be a live in-person fair on April 12th and 13th, 2025. It will be held on the beautiful campus of California Lutheran University (CLU) in Thousand Oaks, California. Thousand Oaks sits at the border between Ventura and Los Angeles Counties, northwest of Los Angeles, on the 101 Freeway. The closest commercial airport is the Hollywood Burbank Airport, BUR. Los Angeles International Airport, LAX, is further away, but offers a much larger selection of flights. There are a wide variety of hotels and motels within a few miles of the CLU campus.

CLU Campus

Eligible contestants will receive an email invitation from CSEF with registration codes, links and instructions.

Judge The Fair

Enter the Fair Registration and Project Viewing Site


Status Check

Check the status of your Project Presenation submission.

All applicants are required to submit a 13 page PDF document which must be approved in advance of the fair. This PDF presentaion is separate and apart from the printed Project Display Board which will be exhibited at the in-person fair itself. Both are required elements of a CSEF project.