Print Products: TCI Student Editions and Reference Texts are available from the National Instructional Materials Access Center (“NIMAC”) in the XML-based NIMAS standard. To learn more about both NIMAC and NIMAS see

Web Products:  TCI uses the World Wide Web Consortium’s Web Content Accessibility Guidelines 2.1 Level AA (WCAG 2.1 AA) as its web accessibility standard. TCI developers are accessibility trained, and TCI engages third-party accessibility experts to conduct annual evaluations of its online application service to ensure continuous compliance.