| Section 508 | Content | WCAG 1.0, priority 1 | Differences |
|---|---|---|---|
| (a) | text equivalent | 1.1 | The Access Board interprets (a) through (k) as consistent with these priority 1 Checkpoints of the WCAG 1.0 |
| (b) | multi media presentation | 1.4 | |
| (c) | use of color to convey information | 2.1 | |
| (d) | style sheets | 6.1 | |
| (e) | server-side image maps | 1.2 | |
| (f) | client-side image maps | 9.1 | |
| (g) | simple data tables | 5.1 | |
| (h) | complex data tables | 5.2 | |
| (i) | frame titles | 12.1 | |
| (j) | flickering | 7.1 | |
| (k) | alternative pages as a last resort | 11.4 | |
| (l) | scripting languages to display content or to create interface elements | Not in WCAG 1.0, priority 1 | Paragraphs (l), (m), (n), (o) and (p) of this section are different from WCAG 1.0. Web pages that conform to WCAG 1.0, priority 1 checkpoints must also meet (l), (m), (n), (o) and (p) to comply with section 508 |
| (m) | link to applet or plug-in that complies with (a) to (l) | ||
| (n) | forms | ||
| (o) | skip repetitive navigation links | ||
| (p) | timed response | ||
| Not in section 508 | multimedia: auditory description | 1.3 | 1.3, 4.1, 6.2, 6.3 and 14.1 are not Section 508 requirements. Web pages that conform to Section 508 must also meet these priority 1 checkpoints to comply with WCAG 1.0 |
| changes in natural language | 4.1 | ||
| dynamic content | 6.2 | ||
| pages usable without support for scripts, applets or objects | 6.3 | ||
| use clear language | 14.1 |
