72nd Annual Orange County Science and Engineering Fair

2027 Application COMING SOON!

(available in September)

For rules & information, visit the OCSEF website.

Pre-Approval Required For:

• Human participants
• Vertebrate animals
• Biological hazards
• Potentially hazardous chemicals, devices or activities
• Early Registration required...and NEW Forms for 2027!
• Students must receive SRC Approval BEFORE starting their project.
• Contact us at info@ocsef.org if you need Pre-Approval before September.
• Check the Pre-Approval Flowchart (HERE) to see if your project requires pre-approval.

How to Create an Account and Open an Application:

New Users

• Click the green "Register" button to create an account for the student. Do NOT use a school email address.
• Verify your email address, then login.
• Open the 2027 OCSEF Application.
• Team projects -- only create one application for your project.

Returning Users

• If you already have an account, click "Log In".
• Click "forgot password", if needed.
• Open the 2027 OCSEF Application.

OCSEF 2027 Timeline:

Project Registration

• Begins September 1, 2026
• Pre-Approval Projects -- Ends November 2, 2026
• Regular Projects -- Ends February 1, 2027 (at 11:59pm)

Project Submission

• Ends February 22, 2027 (at 11:59pm) -- All Projects

For rules and information, visit the OCSEF website