Welcome to the Orange County Science and Engineering Fair!


All applications to the Orange County Science & Engineering Fair must be done using this online system. For more information, please visit our website (OCSEF Registration).


70th Annual Orange County Science & Engineering Fair

2025 Application NOW OPEN!


Click on the OCSEF 2025 Program to start your application and register your project.


Important Reminders:

  1. Projects that include the following need to be reviewed and approved by the Scientific Review Committee (SRC) BEFORE students can start their project. These students are encouraged to complete their project registration as soon as possible.

    • Vertebrate animals

    • Human subjects

    • Hazards (chemicals, organisms, tissues, equipment, tools, devices and dangerous materials)

  2. OCSEF has multiple stages

    • Step 1 Project Registration -- closes Monday, February 3, 2025 (11:59pm)

    • Step 2 Scientific Review Committee (SRC reviews and approves projects)

    • Step 3 Project Submission -- closes Monday, February 24, 2025 (11:59pm) Only allowed for students who complete Project Registration on or before the February 3, 2025 deadline.

    • Step 4 Project Review (OCSEF reviews projects for final approval)

    • Step 5 Judging (students present project to judges during virtual interviews)

  3. Visit our website to review:

    • OCSEF Registration details

    • OCSEF Rules for complete details of when a Certification Form is required for the use of vertebrate animals, human subjects, and/or hazards (chemicals, organisms, tissues, equipment, tools, devices and dangerous materials).

Programs

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