This document (this is a pdf) from the DOE outlines expectations related to the use of ebooks and “new technologies” and expected accommodations for students with unique needs. While this topic can be frustrating, I did find that the examples included some concrete suggestions.
Sometimes not:
If, however, a school chooses to provide emerging technology and proposes traditional alternative media as an accommodation or modification to provide equal access to the educational opportunities and benefits provided to all students, the alternative media must provide access to the benefits of technology in an equally effective and equally integrated manner. Some forms of emerging technology may readily offer students educational opportunities and benefits that traditional alternative media cannot replicate.