Advocating for the Research Community

Advocacy is an important part of the ACA's mission. Yesterday, the ACA submitted comments on proposed federal research regulations that could affect grant administration, peer review, and the stability of long-term scientific research. Read about why we participated in the public comment process and how scientific societies help shape policies that impact research.

Looking Ahead: ACA Annual Meetings Through 2029

The American Crystallographic Association is excited to announce the locations of our next three annual meetings. We look forward to bringing the crystallographic community together in outstanding destinations across North America, each offering unique opportunities for scientific exchange, collaboration, and networking.

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Stay Connected with ACA Annual Meeting Updates

Planning to attend a future ACA Annual Meeting? Sign up for the ACA Annual Meeting Newsletter to receive important conference announcements, abstract and registration deadlines, housing information, program highlights, and other meeting updates delivered directly to your inbox.

Whether you're a longtime attendee or considering your first ACA meeting, the newsletter is the best way to stay informed about upcoming events and opportunities.

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Join the ACA Community

Advance your career and connect with leaders in structural science by joining the American Crystallographic Association (ACA). Gain access to a dynamic professional network, exclusive resources, and opportunities to engage through meetings and Special Interest Groups.

Become a member today and be part of the structural science community.

Join the Global Crystallography Community at IUCr2026

Join crystallographers and structural scientists from around the world at IUCr2026, taking place August 11–18, 2026, in Calgary, Alberta, Canada. With an exceptional scientific program featuring 140 microsymposia, workshops, poster sessions, exhibits, and networking events, IUCr2026 promises to be a landmark gathering for the global crystallographic community.

Important deadlines are approaching. Discounted registration rates, hotel reservations, and campus housing options all have upcoming cutoff dates. We encourage attendees to make their plans soon to secure the best rates and availability.

IUCr2026 Homepage

Visit the IUCr2026 website for registration, housing information, and the latest Congress updates. We look forward to welcoming you to Calgary this August!

Now Accepting Special Topic Submissions

Submit your latest breakthrough to an open Special Topic in Structural Dynamics and share your discoveries with the global structural science community. ACA members enjoy reduced publication fees.