Heading Levels [WCAG.PDF.09]

Test Basis (WCAG 2.0)

Technique URL (WCAG 2.0)

Why this maybe a Barrier

Inconsistent structure in the document such as wrong order of heading elements makes it difficult to follow the document structure. Since some users skim through a document by navigating its headings, it is important to use them appropriately to convey document structure. Inappropriate use of heading elements can cause barriers for blind people using screen readers.

WCAG 1.0 Reference

3.5 “Use header elements to convey document structure and use them according to specification [Priority 2]”

WCAG 1.0 Checkpoint 3.5

WCAG 2.0 Reference

1.3.1 Info and Relationships:“Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text. (Level A)”

WCAG 2.0 Success Criterion 1.3.1

2.4.1 Bypass Blocks: “A mechanism is available to bypass blocks of content that are repeated on multiple Web pages. (Level A)”

WCAG 2.0 Success Criterion 1.3.1