Person bringing a large stack of books to a smiling child

Publishers & Conversion Houses

The NIMAC works with publishers who are contracted by state and local educational authorities to produce printed textbooks and core materials in NIMAS format. The NIMAC also serves Conversion Houses, who convert printed materials into NIMAS files for publishers.

Resources for Publishers and Conversion Houses

Producing NIMAS Files

If you are a publisher who needs to locate a NIMAS conversion vendor, the NIMAC provides a free, self-listing page for companies that specialize in digital content conversion services:

The three essential references for creating NIMAS files:

Additional Metadata Resources:

More Resources for Preparing NIMAS:

NIMAS Basics:

Best Practices for Creating NIMAS

This two-part webinar series (March 2021) highlights best practices for creating NIMAS file sets and explores the challenges unique to creating NIMAS for born-digital educational materials.

Creating NIMAS I: Best Practices & Avoiding Common Problems

You can also download the Powerpoint (available in English or Spanish) to keep for future reference!

Creating NIMAS II: The NOI and Digital Instructional Materials


You can also download the Powerpoints for the Notice of Interpretation (available in English or Spanish) and the NIMAC Exemplar for Digital Instructional Materials (available in English or Spanish) to keep for future reference!

NIMAC Webinar Series for Publishers and Conversion Vendors – Part 1

This video is the first session of a two-part training for publishers and conversion vendors that work with the NIMAC. This session from August 2020 provides an overview of how the NIMAC works with publishers and states, how publishers use their system accounts, and the NIMAC file review process.

You can also download the Powerpoint (available in English or Spanish) to keep for future reference!

NIMAC Webinar Series for Publishers and Conversion Vendors – Part 2

This video is the second session of a two-part training for publishers and conversion vendors that work with the NIMAC. This session from August 2020 provides an in-depth look at resources for creating valid NIMAS files, and batch file submission procedures.

You can also download the Powerpoint (available in English or Spanish) to keep for future reference!

Delivering Files to the NIMAC

NIMAC File Submission Procedures: Archived Webinar (May 22, 2018)

You can also download the Powerpoint (available in English or Spanish) to keep for future reference!

NIMAC Quick How-To Videos

How to Create a Subuser Account

This video will show you how to add an account for a conversion vendor or someone else at your company.

Best Practices for Creating Tables of Contents

Utilizing examples from the DAISY Structure Guidelines, this short video goes over the correct XML formatting for NIMAS TOC.

Publishers Updates

  • NIMAS Specification Report Now Available

    The NIMAC’s report of NIMAS Specification Recommendations is now available. The NIMAC received a supplemental award from OSEP in 2023 to engage in gathering stakeholder input related to the NIMAS specification, and these activities culminated in an in-person stakeholder convening held in Washington, D.C., in May 2024.  This report of findings and recommendations has been…

    Continue Reading: NIMAS Specification Report Now Available
  • Important Policy Change: NIMAS & Digital Instructional Materials

    In May 2020, the U.S. Department of Education issued a final notice of interpretation to clarify that the definition of “print instructional materials” in IDEA includes digital instructional materials. Previously, the NIMAC was only able to accept for materials published and distributed to students in a hard copy print format. However, going forward, the repository…

    Continue Reading: Important Policy Change: NIMAS & Digital Instructional Materials