Web Content Accessibility Guidelines Working Group Charter

The mission of the Web Content Accessibility Guidelines Working Group (WCAG WG), part of the WAI Technical Activity, is to support the Web Content Accessibility Guidelines 2.0 W3C Recommendation, which aims to make Web content accessible for people with disabilities.

This mission is complementary to the work of other Web Accessibility Initiative (WAI) groups within the WAI Technical Activity and the WAI International Program Office Activity. The WCAG WG is part of the WAI Technical Activity.

Join the Web Content Accessibility Guidelines Working Group.

End date 24 September 2015
Confidentiality Proceedings are Public. Some communications between editors may be member-confidential.
Initial Chairs Loretta Guarino Reid, Gregg Vanderheiden
Initial Team Contacts
(FTE %: 50)
Michael Cooper
Usual Meeting Schedule Teleconferences: Weekly
Face-to-face: 1-2 per year


The WCAG WG's scope of work includes:

  1. Maintaining errata for WCAG 2.0;
  2. Maintaining Understanding WCAG 2.0 for editorial issues and additional clarifications;
  3. Publishing an updated WCAG 2.x edition, if needed for correction only, and not for a major change;
  4. Expanding techniques for implementing the WCAG 2.0 in W3C and non-W3C technologies;
  5. Developing support materials that explain the application of WCAG 2.0 to particular situations, e.g., cognitive accessibility, accessibility support;
  6. Responding to public comments on WCAG 2.0.
  7. Creating alternate format versions of WCAG 2.0 to meet particular needs;
  8. Supporting the public in submitting support materials and techniques;
  9. Coordinating work on documentation of accessibility support;
  10. Coordinating with other Working Groups to support public awareness of WCAG 2.0 and how to use it;
  11. Coordinating with other Working Groups to address new accessibility issues from an authoring perspective;
  12. Coordinating with other entities adopting and using WCAG 2.0;
  13. Collaborating with the ERT WG to expand the set of test samples for WCAG 2.0 techniques;
  14. Contribute input where appropriate towards requirements for WAI 3.0 Guidelines.

Consistent with W3C Process requirements on Task Forces, the WCAG WG may form task forces composed of WCAG WG participants or join other W3C task forces to carry out assignments when under the chartered scope of WCAG WG. Any such task force must have a work statement (including objectives, communication, participation, and leadership) that has been announced on the WCAG WG mailing list, approved by the WCAG WG, and is available from the WCAG WG home page. WCAG WG task forces should produce requirements documents that outline the scope and expectations for work. Task forces may set up separate teleconferences and hold face-to-face meetings per the W3C process and with the approval of the WCAG WG.

Success Criteria

Out of Scope

  • Although the WG may publish updated editions of WCAG 2.0 to incorporate corrections, it is out of scope for the WG to publish a major revision of WCAG 2.0.
  • Being required to be the central repository for accessibility support data.
  • Conformance evaluations and reviews.


The following deliverables would be published as W3C Technical Reports:

Other Deliverables

  • Errata for WCAG 2.0;
  • How to Meet WCAG 2.0 (Quick Reference);
  • Policy and procedures regarding sufficient techniques from third parties;
  • Meeting minutes.

The WCAG Working Group may also address the following.

  • Application Notes about particular areas of application of WCAG 2.0, as needed;
  • Alternate versions of WCAG 2.0.


The Working Group plans to publish updated Working Group Notes of Understanding WCAG 2.0 and WCAG 2.0 Techniques one or more times per year.

Timeline View Summary

  • 2010
    • Updated Working Draft for Understanding WCAG 2.0 document(s).
    • Updated Working Draft for Techniques documents, including tests.
    • Update Understanding WCAG 2.0 / Quick Reference.
  • 2011
    • Same as above; priorities for 2011 will be set as needs emerge.


W3C Groups

Authoring Tool Accessibility Guidelines Working Group
Ensure that WCAG 2.0 reflects correct interpretation and integration with ATAG 1.0 and ATAG 2.0, coordinate on development of test files and test procedures.
User Agent Accessibility Guidelines Working Group
Ensure that WCAG 2.0 reflects correct interpretation and integration with UAAG 1.0 and UAAG 2.0, coordinate on development of tests.
Protocols and Formats Working Group
Provide input into other W3C groups on accessibility requirements and to review WCAG 2.0 Techniques.
Evaluation and Repair Tools Working Group
Interpret and coordinate development of techniques for developers of testing methodologies and tools, coordinate on development of test files and test procedures.
Education and Outreach Working Group
Coordinate on making WCAG 2.0 usable by a wider audience, on developing strategies and materials to increase awareness and to educate Web community about WCAG 2.0, ensure WCAG 2.0 uses terms from WAI Glossary properly, Historically, the EOWG has created business case information, evaluation processes, curriculum, quick tips and other resources to clarify the work of the WCAG WG.
WAI Interest Group
Send deliverables for review.
WAI Coordination Group
Address questions on dependencies.
Internationalization Activity
Ensure that references to internationalization techniques are correct, and to ensure that language can be translated successfully.
Mobile Web Initiative
Explore relationship between Mobile Web best practices and WCAG 2.0, and applicability of WCAG 2.0 to content displayed on mobile devices.

Furthermore, Web Content Accessibility Guidelines Working Group expects to follow these W3C Recommendations:

External Groups

  • U.S. Access Board
  • European Telecommunications Standards Institute (ETSI)
  • European Committee for Standardization (CEN)
  • European Commission
  • RERC for the Advancement of Cognitive Technologies
  • RERC on Universal Interface and Information Technology Access


To be successful, the Web Content Accessibility Guidelines Working Group is expected to have 10 or more active participants, with participation where possible including representation from industry, disability communities, accessibility research and government. Effective participation to Web Content Accessibility Guidelines Working Group is expected to consume 4 hours per week most weeks for each participant. Editors may contribute more time.

Participants are reminded of the Good Standing requirements of the W3C Process.


This group conducts its work on the publicly archived mailing list w3c-wai-gl@w3.org (archive). The Working Group relies heavily on Web-Based Surveys to collect opinions prior to meetings, and makes official decisions at weekly teleconferences.

Information about the group (deliverables, participants, face-to-face meetings, teleconferences, etc.) is available from the Web Content Accessibility Guidelines Working Group home page.

Decision Policy

As explained in the Process Document (section 3.3), this group will seek to make decisions when there is consensus. When the Chair puts a question and observes dissent, after due consideration of different opinions, the Chair should record a decision (possibly after a formal vote) and any objections, and move on.

When deciding a substantive technical issue, the Chair may put a question before the group. The Chair must only do so during a group meeting, and at least two-thirds of participants in Good Standing must be in attendance. When the Chair conducts a formal vote to reach a decision on a substantive technical issue, eligible voters may vote on a proposal one of three ways: for a proposal, against a proposal, or abstain. For the proposal to pass there must be more votes for the proposal than against. In case of a tie, the Chair will decide the outcome of the proposal.

This charter is written in accordance with Section 3.4, Votes of the W3C Process Document and includes no voting procedures beyond what the Process Document requires. The Chair decides whether a quorum is present for any Working Group meeting.

Patent Policy

This Working Group operates under the W3C Patent Policy (5 February 2004 Version). To promote the widest adoption of Web standards, W3C seeks to issue Recommendations that can be implemented, according to this policy, on a Royalty-Free basis.

For more information about disclosure obligations for this group, please see the W3C Patent Policy Implementation.

About this Charter

This charter for the Web Content Accessibility Guidelines Working Group has been created according to section 6.2 of the Process Document. In the event of a conflict between this document or the provisions of any charter and the W3C Process, the W3C Process shall take precedence.

In July 2013, this charter was extended to 30 September 2013. In February 2015, this charter was extended to 18 May 2015. In May 2015, this charter was extended to 15 July 2015. In July 2015, this charter was extended to 13 August 2015. In August 2015, this charter was extended to 24 September 2015.

Please also see the previous charter for this group.

Gregg Vanderheiden, Co-chair
Loretta Guarino Reid, Co-chair
Michael Cooper, Team Contact

$Date: 2015/08/19 15:17:27 $