W3C

Accessibility Guidelines Working Group Status

Participation

W3C Member Organizations (number of participants)
  • Accessibility Foundation (0)
  • AccessibilityOz (2)
  • Adobe (1)
  • AKEA Web Solutions, LLC (0)
  • Alibaba Group (1)
  • AMAC Accessibility Solutions & Research Center (0)
  • Amazon (3)
  • association BrailleNet (1)
  • BarrierBreak Technologies (1)
  • The Boeing Company (0)
  • Cyxtera Technologies, Inc. (1)
  • DAISY Consortium (3)
  • Deque Systems, Inc. (15)
  • Dyno Mapper (1)
  • Educational Testing Service (5)
  • eyeo GmbH (2)
  • Fraunhofer Gesellschaft (0)
  • Google, Inc. (4)
  • HM Government (1)
  • IBM Corporation (7)
  • Knowbility (2)
  • Macmillan Learning (2)
  • MADA Center, Qatar (1)
  • Media Access Australia (0)
  • Microsoft Corporation (4)
  • MITRE Corporation (1)
  • National Information Society Agency (NIA) (1)
  • NIC.br - Brazilian Network Information Center (1)
  • Nomensa (3)
  • NYC Department of Education (1)
  • Oracle Corporation (1)
  • Pearson plc (4)
  • Refinitiv (0)
  • Royal National Institute of Blind People (RNIB) (1)
  • Salesforce (2)
  • SAP SE (5)
  • Search Engine Optimization Inc (1)
  • Siteimprove (3)
  • University of Southampton (4)
  • SSB BART Group (6)
  • TetraLogical (2)
  • The Paciello Group, LLC (9)
  • Thomson Reuters Corp. (3)
  • Universidad Politécnica de Madrid (1)
  • University of Illinois at Urbana-Champaign (1)
  • Web Key IT Pty Ltd (2)
  • Web Watch Inc. (2)
  • Wells Fargo Bank N.A. (2)
  • Zhejiang University (4)
Invited Experts
  • Abma, Jake
  • Allan, Jim
  • Bailey, Bruce
  • Carlson, Laura
  • Chakravarthula, Srinivasu
  • Cirrincione, Pietro
  • Delisi, Jennifer
  • Elledge, Michael
  • Eng, Kathy
  • Fazio, David
  • Fischer, Detlev
  • Heath, Andy
  • Joys Andersen, Wilhelm
  • Loiselle, Chris
  • Lowney, Greg
  • Lupu, Alina
  • MacDonald, David
  • Montgomery, Rachael
  • Patch, Kimberly
  • Pluke, Mike
  • Repsher, Stephen
  • Rochford, John
  • Rowsell, Juli-Ann
  • Seeman-Kestenbaum, Lisa
  • Smith, Keyonda
  • Somers, Andrew
  • Ueki, Makoto
Team members
  • Abou-Zahra, Shadi (Team Contact)
  • Brewer, Judy
  • Cooper, Michael (Team Contact)
  • de Vries, Hidde
  • Eggert, Eric
  • Henry, Shawn (Team Contact)
  • Lee, Steve
  • Ran, Ruoxi (Team Contact)

See also the list of individuals participating in this group.

Join or Leave this group (see general instructions for joining this group). Advisory Committee Representatives of participating Members may also nominate or change representatives in the group.

The Call for Participation for this group was announced on 27 Jan 2017; see the Patent Policy FAQ for information about continued participation before re-joining the group.

Licensing

Participants in this group have made certain licensing commitments by joining the group. In addition to these Participants, non-participating W3C Member may have made licensing commitments.

W3C Members not participating in this group who wish to make the same licensing commitments for specifications developed by this group may do so through a Join form for licensing commitments from non-participating Members.

Other parties who wish to make the licensing commitments for this group should consult the instructions for non-Members to make licensing commitments for this group.

Specifications published by the Group

The following is the list of specifications produced by the Accessibility Guidelines Working Group that have associated disclosures obligations, and possible licensing obligations under the W3C Patent Policy.

Specification Patent Disclosure Patent Exclusion
Document under the W3C Patent Policy
Web Content Accessibility Guidelines 1.0 disclose exclude
Web Content Accessibility Guidelines (WCAG) 2.0 disclose exclude
Web Content Accessibility Guidelines (WCAG) 2.1 disclose exclude
Accessibility Conformance Testing (ACT) Rules Format 1.0 disclose exclude
Document not/no longer under the W3C Patent Policy
Core Techniques for Web Content Accessibility Guidelines 1.0 disclose Exclusion is not possible (document not under PP)
CSS Techniques for Web Content Accessibility Guidelines 1.0 disclose Exclusion is not possible (document not under PP)
HTML Techniques for Web Content Accessibility Guidelines 1.0 disclose Exclusion is not possible (document not under PP)
Techniques for Web Content Accessibility Guidelines 1.0 disclose Exclusion is not possible (document not under PP)
Requirements for WCAG 2.0 disclose Exclusion is not possible (document not under PP)
Techniques for WCAG 2.0 disclose Exclusion is not possible (document not under PP)
Requirements for WCAG 2.0 Checklists and Techniques disclose Exclusion is not possible (document not under PP)
Gateway to Techniques for WCAG 2.0 disclose Exclusion is not possible (document not under PP)
Understanding WCAG 2.0 disclose Exclusion is not possible (document not under PP)
Web Content Accessibility Guidelines 2.0 Checklist disclose Exclusion is not possible (document not under PP)
Web Content Accessibility Guidelines 2.0 Checklist disclose Exclusion is not possible (document not under PP)
Website Accessibility Conformance Evaluation Methodology (WCAG-EM) 1.0 disclose Exclusion is not possible (document not under PP)
Guidance on Applying WCAG 2.0 to Non-Web Information and Communications Technologies (WCAG2ICT) disclose Exclusion is not possible (document not under PP)
Cognitive Accessibility User Research disclose Exclusion is not possible (document not under PP)
Mobile Accessibility: How WCAG 2.0 and Other W3C/WAI Guidelines Apply to Mobile disclose Exclusion is not possible (document not under PP)
Requirements for WCAG 2.0 Extensions disclose Exclusion is not possible (document not under PP)
Accessibility Requirements for People with Low Vision disclose Exclusion is not possible (document not under PP)
Cognitive Accessibility Roadmap and Gap Analysis disclose Exclusion is not possible (document not under PP)
Making Content Usable for People with Cognitive and Learning Disabilities disclose Exclusion is not possible (document not under PP)
Accessibility Conformance Testing (ACT) Rules: Common Input Aspects disclose Exclusion is not possible (document not under PP)

Patent Disclosures and Claim Exclusions

This section summarizes patent disclosures by participants in W3C's Accessibility Guidelines Working Group as required by section 6 of the W3C Patent Policy.

W3C takes no position regarding either:

  • the validity or scope of any intellectual property right or other rights that might be claimed to pertain to the implementation or use of the technology, or
  • the extent to which any license under such rights might or might not be available from those not participating in this group.

Where disclosure is required by a W3C Member, the AC Representative makes the disclosure.

Anyone else may also make a disclosure.

Known Disclosures

Disclosures for Accessibility Requirements for People with Low Vision Licensing Notes
Pending unpublished #167 disclosed on 06 Jun 2019

How to Make a Patent Disclosure

W3C Members and Invited Experts (including those not participating in this group) wishing to disclose a patent for any specification produced by the Accessibility Guidelines Working Group should use the Accessibility Guidelines Working Group patent disclosure form.

Disclosures from the general public should be sent to the W3C Staff.

For specifications developed under the W3C Patent Policy, parties that commit to the W3C Royalty-Free Licensing Terms are not required to disclose patents. Any party (not just the Working Group Participants) may commit to the W3C Royalty-Free Licensing Terms and may do so by following the instructions in the next section.

Claim Exclusions

Only Accessibility Guidelines Working Group participants may exclude patent claims concerning specifications developed under the W3C Patent Policy, per section 4 of the W3C Patent Policy. To make an exclusion, participants should use the Accessibility Guidelines Working Group patent claim exclusion form, but only after first disclosing the patent.

Exclusion Opportunities

The Patent Policy FAQ provides detailed information about exclusion opportunities, that is, when a Working Group Participant can exclude a patent claim.

Each exclusion opportunity has a duration. See section 4.1 of the W3C Patent Policy for information on how the exclusion deadline is calculated.

At each exclusion opportunity, Participants may exclude patent claims with respect to a body of text. The Reference Draft is the reference body of text for the current exclusion opportunity.

Note: At each new exclusion opportunity (e.g., in the case of a second Candidate Recommendation with substantial changes), exclusions are only with respect to differences since the previous reference body of text. These differences may be less than an entire document, and the summary below does not address that granularity. Also, in some edge cases (discussed in the FAQ), Participants, depending on when they joined the Working Group, will have different Reference Drafts; the summary below does not reflect this case.

History of Exclusion Opportunities

Accessibility Conformance Testing (ACT) Rules Format 1.0
Call for exclusion started on 2019/04/16, opportunity until 2019/06/15
Web Content Accessibility Guidelines (WCAG) 2.1
Call for exclusion started on 2018/01/30, opportunity until 2018/03/31
Accessibility Conformance Testing (ACT) Rules Format 1.0
Call for exclusion started on 2017/04/06, opportunity until 2017/09/03
Web Content Accessibility Guidelines (WCAG) 2.1
Call for exclusion started on 2017/02/28, opportunity until 2017/07/28
Web Content Accessibility Guidelines 2.0
Call for exclusion started on 2007/12/11, opportunity until 2008/02/09
Web Content Accessibility Guidelines 2.0
Call for exclusion started on 2006/04/27, opportunity until 2006/06/26

Additional Licensing Information

As described in section 5 of the W3C Patent Policy:

All Working Group participants are encouraged to provide a contact from which licensing information can be obtained and other relevant licensing information. Any such information will be made publicly available along with the patent disclosures for the Working Group in question.

Patent holders may:

  1. Provide additional licensing information for documents produced by this Working Group
  2. Provide the same additional licensing information for all documents with associated licensing obligations produced by this Working Group, or
  3. Provide additional licensing information for any W3C document with associated licensing obligations produced by any W3C Working Group under the W3C Patent Policy.

Such licensing information should be sent to the W3C Staff.

Please recall that, per section 5 of the W3C Patent Policy, a W3C Royalty-Free license:

may not impose any further conditions or restrictions on the use of any technology, intellectual property rights, or other restrictions on behavior of the licensee, but may include reasonable, customary terms relating to operation or maintenance of the license relationship such as the following: choice of law and dispute resolution.