The Contra Costa County Science & Engineering Fair (CCCSEF) is set for March 4-6, 2027 at Los Medanos College in Pittsburg. It is only open to students who attend school in Contra Costa County. Students must be in 7th-12th grades. 

We do not accept students who attend schools in other states or countries. CCCSEF accepts mixed-county teams, provided that one team member attends school in Contra Costa County and the out-of-county team member(s) petition(s) their county fair director to participate as a mixed county team at the Contra Costa Science Fair.  The staff must receive an approval e-mail from the other fair director before being accepted to compete in Contra Costa.

CCCSEF is a Regeneron ISEF-Affiliated Fair. Students may compete in only one Regeneron ISEF-Affiliated fair except when proceeding to a State/National fair also affiliated with the Regeneron ISEF from an affiliated fair. All team members must reside and attend school in the greater Bay Area. No out-of-state or international students may be a member of a team.

As an ISEF-Affiliated fair, we follow the rules set forth by Regeneron ISEF. Those rules can be found at the ISEF website (click here). 

FAIR DATES: March 4-6, 2027
Thursday, March 4: Set-up project boards at Los Medanos College
Friday, March 5: Judge Project Board Review (morning). Judge interviews with students (afternoon).
Saturday, March 6: Awards ceremony (8:30 a.m. to 11:30 a.m.)

We have tried to make the application process easy for each competitors. Please follow steps 1 - 5 at the bottom of each page if you wish to participate in CCC Science & Engineering Fair 2027. YOU ARE ENCOURAGED TO understand the role of the Adult Sponsor so before moving to Step 1-5, please spend a few minutes understanding the important role of the Adult Sponsor. 

You may begin with Step 2 if you've already selected a topic.

Deadlines

Abstracts are due AFTER you have completed your experiment, and before the fair begins (no later than March 1st). You may upload your abstract to your Google folder at anytime after experimentation but no later than March 1st. Need help writing an abstract? Click here.

DEADLINES:
November 16 , 2026
Deadline for receipt of all required project paperwork for pre-approval by the Scientific Review Committee (SRC.) Pre-approval is required for projects involving vertebrate animals, human subjects, recombinant DNA, tissue, pathogenic agents, or controlled substances. You must have advance approval of your project application from the SRC prior to experimentation. If in doubt, please submit the project research plan and required paperwork for the SRC review.

ALL other projects must be reviewed and approved by the SRC after experimentation and before competition at the Contra Costa Science Fair.

Projects conducted at a Regulated Research Institution, industrial setting or any work site other than home, school or field and which were reviewed and approved by the proper institutional board before experimentation, must also be approved by the Scientific Review Committee.

January 15, 2027

Deadline for all projects to compete in the 2027 Science & Engineering Fair.

Remember, abstracts are due AFTER you have completed your experiment, and before the fair begins (the first week in March). You may upload your abstract to your Google folder at anytime after experimentation but before March 1st. Need help writing an abstract? Click here.

Please contact Amy Kerns at communityoutreach@ba-leeds.org for questions about registration.