| Date | Event | Address or location |
| September 13, 2025 | Annual Sponsor’s Meeting 10:00 am | Via Zoom- The Meeting Link |
| December 1, 2025 | Region 2 Membership Application & Fees Due ($50 Late Fee Applies if past due) | Tamara Kiszynski 5126 W. Byron St. Chicago, IL 60641 |
| December 31, 2025 | Student Board of Directors Applications Due | Mary Vitaioli |
| December 31, 2025 | Deadline to sign up for State MembershipIf a student is selected for state, their school must be registered for STATE and REGION | State Membership Form Available at their website |
| January 27, 2026 | Deadline for submitting t-shirt & booklet cover design | Website and email |
| February 6, 2026 | Last day to accept new schools into the Region Fair | |
| February 9, 2026 | Poster/Papers/Judges Entries Due | |
| March 7, 2026 | Region 2 Science Exposition Paper Session | HSA Belmont High |
| March 10, 2026 | Deadline for Well Wishers, Full and 1/2 Page Ads in Yearbook | Ali Uslu, Concept Schools 1336 Basswood Road, Schaumburg, IL 60173 |
| March 14, 2026 | Region 2 Science Exposition/Poster Session & Award Ceremony | Northeastern University PE Building – 5500 North St. Louis Ave, Chicago, IL 60625 |
| April 24-25, 2026 | IJAS STATE | SIU Carbondale |