Share Your Expertise — Propose an ACA 2027 Workshop!

Have a workshop idea taking shape?

Help shape the educational program for the ACA 2027 Annual Meeting in San Jose, California! We invite proposals that introduce new techniques, provide hands-on training, and help scientists develop practical skills in crystallography and structural science.

Find Out More About 2027 ACA Workshop Proposal

We Want Your Input!

Annual Meeting Fundraising & Sponsorship

The ACA is reviewing its Annual Meeting fundraising and sponsorship practices, and we want to hear from you! Join one of two virtual discussion sessions to learn about our current approach, discuss challenges, and share ideas for improvement.

Can't attend? You can still submit your feedback through the registration form.

Register Today & Share Your Feedback

Celebrating the 2026 Nobel Prizes in Physics & Chemistry!

The American Crystallographic Association congratulates the 2026 Nobel Prize laureates in Physics and Chemistry! These remarkable achievements celebrate the power of scientific discovery and the continued importance of fundamental research in advancing our understanding of the world.

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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.