Accessibility Guidelines and Standards

Current Standards and Recommendations

Resources about Web Accessibility Standards


Accessible Rich Internet Applications (WAI-ARIA) 1.0 was the first official version of a specification of an ontology of roles, states and properties that can be used to improve the accessibility of web applications.
This document is part of a suite of documents. The best starting point is the WAI-ARIA Overview. For developers of web applications or widgets, the following documents are especially important:

About WCAG 2.2

Documents Accompanying WCAG 2.2

Articles and Blogposts about WCAG 2.2

One of the most frequently misunderstood success criteria in WCAG 2.0 and WCAG 2.1 is Success Criterion 4.1.1 Parsing. For a discussion of this criterion and a set of test pages, see Understanding and Testing WCAG 2.1 Success Criterion 4.1.1 on the website Accessibility Works.

About WCAG 2.1

Documents Accompanying WCAG 2.1

Articles and Blogposts about WCAG 2.1

Translations of WCAG 2.1

Articles and Blogposts Published While WCAG 2.1 Was Being Written

About WCAG 2.0

Documents Accompanying WCAG 2.0

Translations of WCAG 2.0

See Translations of WCAG 2.0.

Articles and Blogposts about WCAG 2.0

Resources about EN 301 549

Chapters 9 (Web), 10 (Non-web documents) and 11 (Software) are based on WCAG 2. Chapters 4–7 and 12–13 define additional accessibility requirements.

Issues in EN 301 549

Some requirements in EN 301 549 are untestable because nobody knows how to apply them. These requirements include (Reflow) for applications, 6.1 (Audio bandwidth for speech), 6.5.2 (Resolution) and 6.5.3 (Frame rate).

Translations of EN 301 549

The national standardisation bodies in some European member states provide translations of the European standard. Below are a few examples.

Other Accessibility Standards

Machine-Readable Guideline Representations

Representation of the Web Content Accessibility Guidelines (WCAG) 2.0 or more recent versions in a machine-processable format:

Guidelines Focusing on Specific Target Groups or Disabilities

Office Documents and E-Books

Accessibility of Non-Web ICT

Evaluation Methods

Historical Standards and Guidelines

Other Links