Key Dates

The 2019 Orange County Science & Engineering Fair (Grades 6-12) + STEAM showcase (Grades 4-12, NEW this year to OCSEF) will be held March 20-22, 2019 at the Business Expo Center, Anaheim, California. The 2019 OCSEF Awards Ceremony will be held March 22, 2019 at the Business Expo Center.

Business Expo Center [New Location]
1960 S. Anaheim Way
Anaheim, CA 92805
714-978-9000 Directions

This year OCSEF has added a STEAM showcase to the fair.



Registration Starting Date Sunday, January 6, 2019
On-Line Application Deadline Friday, March 1, 2019 - OCSEF Competition
Project Set-Up Wednesday, March 20, 2019
2 pm - 7 pm
Judging2 Thursday, March 21, 2019
Doors Open for Judges: 7 am
OCSEF Student Judging: 9 am - 3 pm
STEAM Showcase Student Interviews: 6 pm - 7:30 pm 1
Open House Friday, March 22, 2019
5:30 pm - 6:30 pm
Awards Ceremony Friday, March 22, 2019
6:45 pm - 8 pm
Project Removal3 Friday, March 22, 2019
8:15 pm – 9 pm


1. All projects in senior division will be considered for ISEF competition.

2. Judging/Student Interview Information for the Junior Division (Grades 6-8):

  • Be at least 15 minutes early for your scheduled interview time.
  • You must wear your exhibitor’s ribbon.
  • While standing by your exhibit, judges or groups of judges will come by to discuss your project with you. You will be interviewed by both Category judges and Special Awards judges.
  • Stay by your exhibit until your interview hour is over, and you have received your Certificate of Participation from the Category Judges.
  • You must take home with you all materials/equipment you bring to show the judges. Do not leave anything on display with your exhibit board when you leave.

Judging/Student Interview Information for Senior Division (Grades 9-12):

  • All Senior Division students should be standing at their projects at 9 am.
  • Students will be interviewed by Category / ISEF judges as well as Special Award Judges between 9 am and Noon.
  • All Senior Division students are invited as guests of the OCSEF to lunch.
  • ISEF Semi-Finalists will be announced at 1 pm.
  • ISEF Semi-Finalists will be interviewed in a second round of judging at 1 pm. All other Senior Division students are released.
  • ISEF Finalists and Alternates will be announced at the Awards Program.

3. Project Removal: All projects must be removed by 9:00 pm. Your exhibitor’s ribbon will be needed to pick up your project. You may give your ribbon to another person to pick up your project.Any project not picked up by the deadline will be discarded!

4. The awards ceremony will be held at the Anaheim Business Expo Center.  Awards will be announced and presented at that time; results will be posted on the website after the ceremony.

Questions? Contact us here.

1STEAM Schedule:

Thursday, March 21, 2019

5:00 pm Judges arrive - dinner served
5:45 pm Students arrive and stand by projects
6:00 pm - 7:30 pm Student Interviews
7:45 pm Thank-you to students, scientists, and engineers
Project Removal3 Friday, March 22, 2019
8:15 pm – 9 pm