Web Content Accessibility Guidelines (WCAG) Overview | Web Accessibility Initiative (WAI) | W3C

Web Content Accessibility Guidelines (WCAG) Overview

Summary

Introducing the Web Content Accessibility Guidelines (WCAG), including WCAG 2.0 and WCAG 2.1.

Quick links to resources:

  • How to Meet WCAG 2 (Quick Reference)
  • WCAG 2.1 Standard
  • WCAG 2.0 Standard

Page Contents

  • Introduction
  • WCAG 2.0, 2.1, 2.2
  • Who WCAG is for
  • What is in the WCAG 2 Documents
  • WCAG 2.0 is ISO/IEC 40500
  • Other guidelines
  • Who develops WCAG
  • More Information

Introduction

Web Content Accessibility Guidelines (WCAG) is developed through the W3C process in cooperation with individuals and organizations around the world, with a goal of providing a single shared standard for web content accessibility that meets the needs of individuals, organizations, and governments internationally.

The WCAG documents explain how to make web content more accessible to people with disabilities. Web “content” generally refers to the information in a web page or web application, including:

  • natural information such as text, images, and sounds
  • code or markup that defines structure, presentation, etc.

WCAG 2.0, 2.1, 2.2

WCAG 2.0 was published on 11 December 2008.
WCAG 2.1 was published on 5 June 2018.
WCAG 2.2 is scheduled to be published in 2021.

All requirements (“success criteria”) from 2.0 are included in 2.1. The 2.0 success criteria are exactly the same (verbatim, word-for-word) in 2.1.
All requirements [...]

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