UDL and accessibility are related but not the same. Accessibility often means meeting a specific student’s documented need, such as a captioned video or an accessible document, and that legal duty does not go away. UDL means designing the course so fewer barriers exist in the first place.

They reinforce each other. A course built with captions, real headings, clear structure, and more than one format needs fewer last-minute accommodations, because access was designed in. For the structural how-to, alt text, headings, captions, and contrast, see KSARN’s accessibility training. Here the point is to plan for variation among learners from the start.