| January 2026 | |
| January 14 | 50% of Booth Fees Due |
| February 2026 | |
| February 17 | Affiliated Meeting/Events Request Submission Site Opens |
| April 2026 | |
| April 9 | Exhibitor Housing Opens |
| April 9 | Exhibitor Resource Center Opens |
| May 2026 | |
| May 4 | 100% of Booth Fees Due |
| May 21 | Exhibitor Registration Opens |
| August 2026 | |
| August 4 | Exhibitor Rooming List Due at 5:00 p.m. Eastern time |
| August 21 | Discount Deadline for GES Orders |
| August 21 | After-Hours Access Form and Addendum Due Booth Renderings Due (Booths 400 square feet and larger) Exhibitor Reveals Form Due Giveaways Form Due – Mandatory On-site Contact Form Due – Mandatory Rigging Renderings Due (Booths 400 square feet and larger) |
| August 21 | Notification of Intent to Use EAC/Non-official Contractor Form Due Certificate of Insurance for EACs Due |
| September 2026 | |
| September 3 | Last Day to Make Changes to Exhibitor Rooming List via the ASTRO Housing Center |
| September 6 | Exhibitors to Contact Hotels Directly for Rooming List Changes and Cancellations |
| September 26 | ALL Booths must be set by 8:00 p.m. |
| September 27 | On-site Booth Sales Start |
| September 29 | Move Out Begins at 5:00 p.m. |
| October 2026 | |
| October 1 | All Freight must be Packed and Ready to Ship by 12:00 p.m. |
