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About the AEM Center

The National Center on Accessible Educational Materials for Learning at CAST provides technical assistance, coaching, and resources to increase the availability and use of accessible educational materials and technologies for learners with disabilities across the lifespan.

Learn more about the AEM Center

Why accessible materials & technologies?

Accessible versions of educational materials may mean the difference between learning barriers and learning opportunities.

Start a conversation with our video series


NIMAS is a technical standard used by publishers to prepare “electronic files” that are used to convert instructional materials into accessible formats. NIMAC is a national center that stores NIMAS source files from publishers.

Learn more about NIMAS & NIMAC

Learning on the Go: ADA Title II Updates and Requirements

In April 2024, the United States Department of Justice issued a final rule requiring state and local governmental entities — including early childhood, elementary, secondary, and postsecondary institutions — to ensure web- or mobile app-based digital learning resources are appropriate for and usable by students with disabilities.

Learn more about the final rule

Featured AEM Center Resources

Learn more about AEM Center resources

AEM Takeaways logo

AEM Takeaways

Dive into the AEM Takeaways series for quick, exciting lessons on accessible materials and technology! Watch short videos where AEM experts break down terms and practices, then get real-world insights from field professionals. Plus, explore extra resources to supercharge your training in schools, universities, or any setting you choose!

View the series


Creating NIMAS Files

Practical information about creating a NIMAS fileset for publishers and conversion houses.

AEM Center at CAST


Open Education Resources: Ensuring Inclusive Learning in Uncertain Times

Situated at the intersection of where the OER field meets accessibility issues, this guide details a variety of resources useful for evaluating and selecting appropriate and accessible OERs.

A. Hashey, et al.


AEM Navigator

Use the AEM Navigator to make informed, accurate decisions about the acquisition of accessible formats for students who need them.

AEM Center at CAST

The Accessible Learning Experience | CAST, Illustrations of a microphone, sound waves, digital text, and wifi

The Accessible Learning Experience

Turn learning barriers into learning opportunities by exploring the world of accessibility and Universal Design for Learning in this monthly podcast.

Listen to the podcast

Upcoming AEM Center Events

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Accessibility Matters: Tips and Tools for Video and Social Media Design

Come learn how to create accessible and engaging videos and social media posts. Explore resources on topics such as captions, transcripts, color contrast, alt text, and more. By the end of this session, you will have the skills and knowledge to make your content more inclusive and accessible for everyone.

3:00PM – 4:00PM MT on Tuesday, June 25, 2024

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