Plan an Event

Customize your ACS Experience for ACS Fall 2026 using Momentive.

Plan an event
ACS Fall 2026

ACS Fall 2026 will be held August 23-27, 2026, in Chicago, IL.

Momentive (formerly Ai Requestor) is open for ACS Fall 2026 requests. The deadline to enter event requests is Friday, May 8. After this date, a late fee of $200 may be applied to your event confirmation(s).

If you are planning an in-person event(s) in Chicago you can access Momentive to submit logistics for your event(s) by the appropriate deadlines listed below. 

Upcoming deadlines

April 13Momentive is open for meeting room request and Signage is available.
May 8All meeting room requests are due, and meeting room requests through Momentive close.
May 26Venue locations and menu selections are available in Momentive.
June 8Final Deadline to enter food and beverage (F&B) in Momentive.
June 22Final confirmations with confirmed room name and detailed logistics, including expected attendance, are sent out from Momentive.
June 29Approval of final confirmation(s) and meal guarantees are due from clients.  All changes from this point forward must be made on-site. Additional charges may apply.

If you will be planning only a digital event with no physical space in Chicago, please do not complete the space request form. Digital event information needs to be entered in a separate form available online in the coming weeks.

If you have further questions, please meetings-help@acs.org

Support

Need Help? Contact us for registration, hotel, presenter support, or any other questions, or access helpful tips to get the most out of ACS Meetings.