Document file name does not contain spaces or special characters.
Document file name should be concise, generally be limited to 20-30 characters, but make the content of the file clear in the context in which it is presented.
If frames are used, each frame includes a title that describes the frame’s purpose or content.
Documents are readable without an associated style sheet.
All images and/or non-text elements have alternative text descriptions:
- Alt tags should be limited in length
- Longer descriptions should use the longdesc tag.
- Images used only for decoration or spacing have null alt tags (alt=””).
All charts and graphs have either an alternative text description or provide a description in the text immediately below the chart/graph. Descriptions in the text must be referenced in the alt tag.
Image maps use appropriate alternative text and are rendered on the user-side.
Color is not used to convey important information, e.g., "See red text below."
Color contrast is sufficient and color combinations used are distinguishable to those with color-blindness.
Data tables identify row and column headers.
Data cells in tables are associated with row and column headers.
Graphics, animations, movies, or other objects avoid strobing, flickering, or flashing effects.
Scripts include text and keyboard access, and the Web page functions properly when the scripts are disabled. (Examples: images used in navigation scripts have alt tags and “onClick” commands are accompanied by “onkeypress.”)
When electronic forms are designed to be completed online:
- Use the LABEL and ID elements when form controls are text input fields.
- Make dynamic HTML scripting keyboard accessible.
- Use Title attributes.
- Include special instructions within FIELD labels.
- Create form fields in logical tab order.
- Render buttons in HTML rather than as images.
A Skip Navigation link is provided with any repetitive navigation.
The user has control over the timing of content changes.
Font size is under user control.
All linked files are 508-compliant or a second link to an equivalent alternative HTML or text-only version is provided.
A link to a download is provided for all viewers, players, and plug-ins. (Example: Adobe Acrobat Reader, Windows Media Player, PowerPoint.)
File format and size of non-HTML linked files are provided.
A text-only version is provided when there is no other way to make the content accessible. (Example: A flow chart must have a text equivalent.)