When designing questionnaires, we take special care of ensure they are not only valid measures of what we aim to study, but are also designed in an eosy-1o follow format that minimizes burden and non-response in any mode. Unit non-response is o critical issue in all high quality research, especially projects addressing social policy or political polling. In recent years, technological advancement has enabled us to explore the world-wide-web as a new mode for questionnaire design and administration. Research professionals show increasing interest in web surveys, with publications and presentations on topics including: who responds, when they respond, and differences in data between the web and other modes of administration. However, little to no literature exists discussing how we, as survey professionals, should construct web surveys that follow the principles of Universal Design (UD). UD is a philosophy for designing and delivering products and services that are usable by people with the widest possible range of functional capabilities - regardless of age, ability or situation. It embodies the concept of on inclusive society and its importance has been recognized by government, business, and industry. By creating questionnaires on the web that are inaccessible to people with disabilities, we impede participation from o growing segment of the U.S. population. In addition, Federally-funded research must comply with the Americans with Disabilities Act Section 508, which applies to both physical and virtual spaces. Finally, employing UD enables a wider range of audiences to complete web surveys with ease, including those using slow connections (dial-up), cellular telephones, and Personal Digital Assistants (PDA). This paper demonstrates the benefits of universal design, gives researchers practical tools for implementation of these principals, and shows how to test web surveys for accessibility.