About

Version: WCAG 2.0+
Number: 1.3.1
Level: A
Applicability:
  • Asides
  • Bolding and Italics
  • Figures
  • Forms
  • Lists
  • Sections
  • Tables
Requirement:

Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.

Guidance:

Purpose

The purpose of this success criterion is to ensure that users who cannot see the structure conveyed through the presentation of the content have access to this information.

Proper tagging of structure allows assistive technologies to provide equivalent reading ease, such as enabling users to navigate tables by column and row, jump over list items to find information, and hear when they encounter new paragraphs and sections of content.

How to Meet

This success criterion is one of the most open-ended to meet as the visual structuring of publications covers many aspects of the content.

The general principal is that content must not be styled to appear one way for visual readers while being structured in a less meaningful way that prevents assistive technologies from being able to understand the purpose.

Some of the more common applications of this requirement are that:

But ensuring that a publication fully meets this requirement requires a thorough comparison of the visual rendering of the content against the underlying markup. The question to ask in each case is if the styling were removed, would the author intention still be understandable to a machine.

Additional Information

The following knowledge base pages provide more information about how to address this success criterion for publishing content: