ACA 2022 Annual Meeting
Portland Marriott Downtown Waterfront
July 29 - August 3, 2022
More info...

Structural Science Awakens: 71st Annual Meeting of the American Crystallographic Association

July 30, 2021 - August 5, 2021 | #acamtg2021 | #vACAmtg2021 

Scientists with specialties in biology, chemistry, geosciences, materials science and more converged virtually for the 71st Annual Meeting of the ACA. The theme for the 2021 meeting was “Structural Science Awakens,” which celebrates the ACA’s new tagline “The Structural Science Society.” Scientific sessions and workshops highlighted new developments in single-crystal and powder diffraction, scattering, cryo-EM, micro-electron diffraction, and advanced capabilities at national x-ray, neutron, and EM facilities.  


Meeting Statistics

The ACA recognizes the positive impact that a conference speaking opportunity has on an individual's track record and visibility. We also recognize that some sections of the scientific community are often under-represented in conference programs, and that this can affect diversity in the long-term. Our policies were developed to ensure quality and equality.  Find out more...



The ACA recognizes distinguished achievement in the field of crystallography to both mature and early career crystallographers through the presentation of various annual awards and prizes.  Read more about the 2021 ACA award winners...

Read more about the ACA's awards programs and nominate a friend of collogue for and award or ACA fellowship in 2023!  



The ACA2021 abstracts are now archived and available to view!  Since 2017, the ACA's partnership with the IUCr has allowed the ACA to archive all abstracts from the annual meeting in Acta Crystallographica Section A:

2017 | 2018 | 2019 | 2020 | 2021