The document discusses developing a crosswalk between Universal Design (UD) principles and the World Health Organization's International Classification of Functioning, Disability and Health (ICF). It proposes linking UD guidelines to evidence from research studies categorized by ICF environmental factors, functions, and participation domains. This would help practitioners apply research knowledge to design problems and guide future studies. The document outlines developing UD guidelines through an expert panel process and public commentary to build an online knowledge base relating UD best practices to the ICF framework.