70th Annual Orange County Science & Engineering Fair
Tentative Fair Schedule
Friday, September 6, 2024 (8:00am PST): Project Registration opens – Required for ALL projects! NOW OPEN OCSEF Online Application (See the Registration and Rules pages of our website for details)
Monday, February 3, 2025 (11:59 pm PST): Project Registration closes – Required for ALL projects. No exceptions.
Monday February 24, 2025 (11:59 pm PST): Project Submission closes – This includes the slide deck, lab notebook, and video. No exceptions. Project submission will be allowed only for students who have completed their project registration on or before the deadline.
Wednesday March 12, 2025: Project Judging for Board Awards (via Zoom)
Sunday March 23, 2025: Awards Ceremony at Chapman University (In-Person) **Subject to change**
Affiliated Fairs Selection
- California Science & Engineering Fair: we will select middle school and high school winners for CSEF 2025
- Thermo Fisher Junior Innovators Challenge: we will select middle school winners for TFJIC 2025
- International Science & Engineering Fair: we will select top high school projects to represent OCSEF at ISEF 2025. **subject to change**