Last updated October 1, 2026
Our approach
We design the site to support keyboard navigation, visible focus, readable contrast, descriptive labels and responsive layouts from mobile to desktop. We continue to review and improve these areas.
Known limits
Laboratory storefronts and documents are provided by participating laboratories and may not meet the same standard. If you have trouble with one, tell the laboratory and let us know.
Tell us about a barrier
If you cannot use part of the site, please tell us which page and what assistive technology you were using, and we will work to help and to fix the problem.