The 69th Annual Orange County Science & Engineering Fair: March 2024!


  • Monday, July 31, 2023 at 8:00 am PST: Project Registration opens – Required for ALL projects! Registration is now open
  • Monday, February 5, 2024 at 11:59 pm PST: Project Registration closes – Required for ALL projects. No exceptions.
  • Monday February 26, 2024 at 11:59 pm PST: Project Submittal Deadline– Including the presentation slide deck, Log book, video, and affidavit. No exceptions. Project submittal will be allowed only for students who have completed their project registration on or before the deadline.
  • Wednesday March 6, 2024 Project Judging for Board Awards (Zoom)
  • Sunday March 10, 2024 Awards Assembly – Chapman University (In-Person)***Subject to change

  • We will be selecting high school and middle school winners for the California Science & Engineering Fair as always!
  • For high school students – there will be a research conference opportunity on April 27, 2024.
  • For high school stuents – there will be an opportunity to be selected as an OCSEF representative to ISEF 2024.
  • For middle school students – there will be an opportunity to be selected for the Thermo Fisher Junior Innovators Challenge (formerly known as the Broadcom MASTERS)