Accessibility Conformance Testing (ACT) Overview | Web Accessibility Initiative (WAI) | W3C

Accessibility Conformance Testing (ACT) Overview


This page introduces the Accessibility Conformance Testing (ACT) Rules Format and lists ACT Rules formally published by W3C.

Page Contents

  • Introduction
  • Who ACT is for
  • What is in ACT
  • Who develops ACT
  • Additional information


The purpose of the Accessibility Conformance Testing (ACT) effort is to establish and document rules for testing the conformance of web content to accessibility standards, such as Web Content Accessibility Guidelines (WCAG). These test rules address automated, semi-automated, and manual testing. ACT makes accessibility testing more transparent, and thus reduces confusion caused by different interpretations of accessibility guidelines.

Who ACT is for

The primary audience of Accessibility Conformance Testing (ACT) is developers of accessibility evaluation methodologies and testing tools. They write, share, and implement ACT Rules into their products and services.

A secondary audience is accessibility experts. They often assist in setting an organization’s accessibility policy, and it is important for them to know what ACT Rules do, and how they relate to their own requirements.

Who ACT is not for: Users of accessibility tools (web developers, content authors, QA testers, etc.) are not expected to read ACT. These audiences will use products and services that implement ACT Rules.

What is in ACT

ACT [...]

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