PACS (Program and Abstract Creation System) & Programming Resources

The online national meeting programming system of the American Chemical Society

PACS is used by ACS authors, program chairs, and symposium organizers to view, edit, and prepare abstracts within a single system for ACS meeting publications, including the following:

  • CD of abstracts
  • Web abstracts (Personal Scheduler)
  • Preliminary program
  • Technical program
  • Onsite program booklet

Features include the ability to view all your abstract submissions for the meeting using your ACS ID.

How to Submit an Abstract

To submit an abstract, sign in using your ACS ID at

If you do not already have an ACS ID please follow these instructions:

  1. Select “Registering is easy”.
  2. Create your username and password, and select the appropriate relationship to ACS.
  3. When you have successfully created an ACS ID, return to the PACS homepage at and sign-in.

PACS Resources

PACS Training Resources
Find PACS user guides, webinars, and frequently asked questions for program chairs, symposium organizers, and abstract submitters.

Program Chair Resources
Find meeting timelines, programming policies, and commonly asked questions about program chair responsibilities and creating programs for national meetings.

Meeting Resources

National Meetings
Find division program chair and symposium organizer contact information, abstract submission deadlines, and meeting symposia details.

Regional Meetings
Find regional meeting dates, organizer resources as well as archived online programs.

Need Help?

If you have questions about working with PACS:

  • E-mail:
  • Call PACS Support: 8:30 a.m. to 5:00 p.m. EST

1-800-333-9511 (US only)
1-614-447-3776 (outside the US)

ACS is committed to helping you work with the system. Support hours are subject to be extended around critical meeting deadlines. The ACS team commits to a 24-hour turnaround time to respond to and resolve issues.