Document Type: Standard
Content:HHS must provide radio buttons when users need to choose one, and only one, response from a list of mutually exclusive options. HHS must always use at least two radio buttons in connection with each other. A single radio button must not be used to present a lone item.
Reason:Radio buttons are a series of on-screen buttons that allow only one selection to be made from a group of options. By following the standards above, radio buttons can be used for optimal user performance.
If a set of mutually-exclusive options are greater than five or more, a drop down box or list box may be used to save space.
Related Web Standards and Usability Guidelines: