(1)(a) “Instructional material or materials” means textbooks and other materials written and published primarily for use by students in postsecondary instruction that are required or essential to a student’s success in a course of study in which a student with a disability is enrolled. The determination of which materials are “required or essential to student success” shall be made by the instructor of the course in consultation with the official making the request pursuant to Section 53B-23-103 in accordance with rules issued pursuant to Section 53B-23-106.

     (1)(b) “Instructional material or materials” does not include nontextual mathematics and science materials until the time software becomes commercially available that permits the conversion of existing electronic files of the materials into a format that is compatible with braille translation software or alternative media for students with disabilities.

     (6)(a) “Structural integrity” means all of the printed instructional material, including the text of the material, sidebars, the table of contents, chapter headings and subheadings, footnotes, indexes, glossaries, and bibliographies.

     (6)(b) “Structural integrity” need not include nontextual elements such as pictures, illustrations, graphs, or charts.