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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

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


Fair Use and Accessibility for Persons with Disabilities

This brief presents an overview of the “fair use” doctrine under copyright law in relation to the provision of accessible texts to persons with disabilities.

J. Karger


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

Learn more about AEM Center events


The 3 AEMigos: AT, AEM and Accessible Technology

Come join the fun as CAST's TA Specialists at the National AEM Center clarify the concepts and relationships of accessible materials, assistive technology, and technology for supporting students with disabilities. Presenters will share resources and best practices for implementing them, and facilitate discussions and reflections among participants to help them apply the knowledge to their own contexts.

2:45PM – 4:00PM MT on Monday, June 3, 2024


Designing for Accessibility from the Beginning: How to Create and Vet Accessible Materials

Join this session to gain insight on easy-to-implement techniques that can help the busy educator vet apps for accessibility quickly to decide which ones should be loved (and kept) and which ones should be…listed (as in passed on)! Learn to direct your limited resources to those apps that will better meet the needs of all of your learners.

4:15PM – 5:30PM MT on Monday, June 3, 2024


Creating an Environment of Trust to Support Universal Design for Learning (UDL)

1EdTech specifications along with Universal Design for Learning (UDL) contribute to an educational ecosystem that embraces diversity, equity, and accessibility. Join the session to explore these options further and engage in meaningful discussions about enhancing learning experiences!

9:20AM – 10:00AM MT on Tuesday, June 4, 2024

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