91ÉçÇø

January 2026 - Project proposals should be reviewed and approved by teachers and IRB (if required by ISEF Rules).Ìý Please see the "Getting Started" tabs on the left side for grade-specific information. Experimentation should be completed by February 2.Ìý

February 9, 2026Ìý- Teacher/Adult Sponsor Registration Deadline. Teachers/Adult Sponsors wishing to enter exhibitors into the fair must register for a by this date.Ìý

February 9, 2026Ìý– Senior division online registration (www.sefireg.org) and the following Senior Division paperwork is due for all senior division exhibitors.

• Project Questionnaire
• Personal Information
• Basic Project Information
• Required Forms as indicated by the ISEF Rules Wizard

All paperwork, excluding the 91ÉçÇø Photo Release Form, must be submitted electronically via the SEFI registration website ().Ìý

Ìý(now digital) are required for each exhibitor at the fair. This form can be submitted at any time prior to the fair.Ìý

91ÉçÇø Photo Release Form (printable form)

February 16, 2026Ìý– Junior and Elementary Division Online Registration and All Junior Division and Elementary Division Paperwork is Due.

• Project Questionnaire
• Personal Information
• Basic Project Information
• Project Abstract

All paperwork excluding the 91ÉçÇø Photo Release Form 2025 TSEF Photo Release Form (now digital)Ìýmust be submitted electronically via the SEFI registration website ().Ìý

Ìý(now digital) are required for each exhibitor at the fair. This form can be submitted at any time prior to the fair.

91ÉçÇø Photo Release Form (printable form)

Thursday, March 12, 2026 -On-site judging session at 91ÉçÇø (6 p.m. - 8 p.m.).Ìý

Friday, March 13, 2026 - Public exhibition at 91ÉçÇø from 9 a.m. - 12 p.m.

Monday, March 16, 2026- Awards CeremonyÌý

TBDÌý- Hoosier Science and Engineering Fair, IU Indianapolis

May 9 -15, 2026Ìý-ÌýRegeneron International Science and Engineering Fair, Phoenix, AZ