72nd ACA Annual Meeting | July 29 - August 3, 2022

Attendee Health & Safety is our #1 Priority: The ACA 2022 Annual Meeting will be an in-person event with virtual components.  All attendees are required to be fully vaccinated and boosted against COVID-19, if eligible. We will respond accordingly to all local and national public health guidelines.  See more about ACA2022 Health & Safety plan.

The American Crystallographic Association is returning to an in-person gathering for the 72nd annual meeting. Scientists interested in biological, chemical, and material structures will travel to the heart of Portland, Oregon, July 29 - August 3, 2022. In an effort to remain flexible in this dynamic time, the ACA plans to offer a selection of the in-person content as fully accessible, hybrid presentations. The past two years have kept us physically apart; but many researchers who cannot attend in person have enjoyed the flexibility of virtual events. This partial hybrid format will hopefully foster lively, cooperative discussions from a diverse body of attendees. We also look forward to celebrating the diversity of our scientific interests. With the recent addition of “The Structural Science Society” to the ACA’s title, the meeting will host sessions in an expanded range of disciplines. Topics will cover single-crystal, powder, and fiber diffraction with X-rays, neutrons and electrons; scattering; cryogenic electron microscopy; advanced capabilities at national synchrotron and neutron sources; and many more!  


Portland, Oregon

Portland is the largest and most populous city in the U.S. state of Oregon. Portland's summer weather is nothing less than perfect. Make sure to attend ACA sessions but when you have down time make sure to visit Portland's burgeoning distillery scene.  Walk or bike over one of Portland's TWELVE bridges. Wander downtown to view street art and murals or take a hike or bike ride in some of the finest forests and mountains in the Pacific Northwest.  



Health & Safety

Registered attendees must verify vaccination status through CrowdPass and will be emailed a link to submit the appropriate documentation.  The ACA is committed to providing opportunities to engage in the safest and most enjoyable in-person experience possible. To achieve this, we are focused on a creating a multilayered approach to mitigating COVID-19 at all ACA in-person events. Review the ACA Health &Safety Guidelines, ACA2022 Best Practices and vaccination requirements.


Code of Conduct
Health & Safety Info
Marriott's New Protocols & Elevated Practices


Hybrid Component

After two successful all-virtual meetings, the ACA recognizes that the latest research and innovations in the field of structural science can be accessible via virtual attendance.  We hope that all of you will be able to travel and meet us in Portland from July 29 – August 3, 2022, however, for those of you who might not be able to travel, we want to offer a curated virtual option.
Virtual/Hybrid Information

ACA SciArt Show

We are excited to host the first ever ACA SciArt Show featuring the works of art by our members and attendees.  Join us to see how scientists of all levels combine their art and science or submit a piece to display!  Find out more...