Many organizations in addition to W3C develop standards for the Internet or the Web. In order coordinate the development of the Web, W3C engages in liaisons with numerous organizations after careful consideration of the costs and benefits.

As defined in the W3C Process Document, the term "liaison" is used to refer to coordination of activities with a variety of organizations, through a number of mechanisms ranging from very informal to mutual membership, or even more formal agreements. Liaisons are not meant to substitute for W3C membership.

W3C is a broad community which covers standardization work in W3C Working Groups and incubation work in W3C Community Groups (CGs). Listing a formal liaison with W3C on behalf of a CG on this page is generally discouraged because CG output does not represent the consensus of the W3C Community (of course informal liaison is always encouraged). If an external group outside of W3C would like a Liaison with a CG, they must write up their rationale and be explicit that they understand that the CG work is not normative. If there is such a request, it should be sent to team-liaisons@w3.org for approval.

Contact W3C about a new or existing liaison.

Liaison index → 3 • A • B • C • D • E • F • G H I • J  • K • L M • N O P S • T • U • V • W

Organization W3C Activities affected W3C contact Liaison contact
3GPP 3rd Generation Partnership Project Media and Entertainment, MMI, SVG, Timed Text Kazuyuki Ashimura,

Chris Lilley, François Daoust,

Philippe Le Hégaret,

3GPPLiaison alias

Paolo Usai,
SVG: Tolga Capin

Accord Project Verifiable claims,
Sandro Hawke Peter Hunn
Annotating All Knowledge Coalition (Steering Committee) Digital Publishing Ivan Herman Maryann Martone, Dan Whaley
Access Board (US) WAI Judy Brewer David Capozzi
Assistive Technology Industry Association (ATIA) WAI Judy Brewer David Dikter
Alliance for Internet of Things Innovation (AIOTI) Web of Things Dave Raggett Patrick Guillemin
Apache The Apache Software Foundation Open Source Eric Prud'hommeaux Apache board
Association of Radio Industries and Businesses (ARIB) Media and Entertainment,
Timed Text
Thierry Michel, Philippe Le Hégaret
Kazuyuki Ashimura
Yusei Nishimoto (Timed Text)
Joji Urano (Media and Entertainment)
Advanced Television Systems Committee (ATSC) Media and Entertainment,
Timed Text
Kazuyuki Ashimura,
Philippe Le Hégaret
Mark Richer
Michael Dolan
CableLabs (W3C Member) Media and Entertainment Philippe Le Hégaret AC Rep
European Committee for Standardization (CEN) Generic Liaisons Privacy, WAI Rigo Wenning, Shadi Abou-Zahra John Ketchell
Barbara Gatti
CEN (ELSSI EMD) Semantic Web Eric Prud'hommeaux David Leal
CESI China Electronics Standardization Institute Generic Liaisons,
Judy Brewer

Ms. Yuan Yuan

Consumer Technologies Association (CTA) Media and Entertainment François Daoust Michael Bergman
Continua Health Alliance Device API, Mobile, HCLS Dominique Hazael-Massieux Chuck Parker

Jose Manrique Lopez de la Fuente

DASH Industry Forum (DASH-IF) Media and Entertainment, HTML,
Michael[tm] Smith (HTML)
Kazuyuki Ashimura (Media and Entertainment)
Philippe Le Hégaret (TTML)
Iraj Sodagar
Digital TV Group HTML, CSS, Canvas Element, Media extensions, Media and Entertainment, Testing. Kazuyuki Ashimura

François Daoust

Simon Gauntlett [DTG Technology Director], Chris Collis [Chair Security Group], George Robertson [Chair IP Delivery Group] , Ali Teffahi
DCMI Dublin Core
Semantic Web Ivan Herman AC Rep.
DAISY Consortium WAI Judy Brewer George Kerscher
European Broadcasting Union (EBU, W3C Member) Media and Entertainment, François Daoust AC Rep
ECHONET Consortium WoT Kazuyuki Ashimura Morio Hirahara
ECLASS WoT Kazuyuki Ashimura Christian Block
Ecma International HTML, Web Apps, I18n, Security,
Rigo Wenning
Istvan Sebestyen
European Commission


DG Enterprise

Multistakeholder Platform


Generic Liaisons

Judy Brewer,

Philipp Hoschka,

Rigo Wenning,

Jeff Jaffe,

Shadi Abou-Zahra

From Commissioner level to PO.

European Disability Forum (EDF) WAI Shadi Abou-Zahra Alejandro Moledo
EMVCo Web Payments Ian Jacobs Bastien Latge
European Standards Organizations (ESO) Joint Working Group (JWG) on eAccessibility WAI Shadi Abou-Zahra Fernando Machicado
European Telecommunications Standards Institute (ETSI) Generic Liaisons
(Sophia Antipolis, ERCIM, WAI)

Rigo Wenning,

Shadi Abou-Zahra

Margot Dor,

Xavier Piednoir

Mike Pluke, and Mathias Schneider for M376

Federal Communications Commission (USA FCC) WAI
Judy Brewer Karen Strauss
FIDO Alliance Web Payments,
Wendy Seltzer,
Ian Jacobs
Tony Nadalin
Financial Services Technology Consortium (FSTC) Generic Liaisons Ralph Swick Dan Schutzer, Executive Director (and AC Rep)
GENIVI Automotive Ted Guild Steve Crumb
Global Initiative for Inclusive ICTs (G3ICT) WAI Shadi Abou-Zahra, Judy Brewer Axel Leblois
GlobalPlatform Security, Ubiquitous Web Application Wendy Seltzer,
Ian Jacobs
Gil Bernabeu (Technical Director),
Kevin Gillick

Semantic Web

Jeff Jaffe
Steven R. Bratt (CTO)
GSM Association (GSMA) Mobile, Network Friendly CG Philipp Hoschka
J. Alan Bird
David Hutton (GSMA), Paul Gosden (GSMA TSG), Natasha Rooney (Overall Relationship)
Hybrid Broadcast Broadband TV (HbbTV) Media and Entertainment François Daoust Peter MacAvock. Co-Chair HbbTV Requirements Group
Hypercat Alliance Web of Things Dave Raggett Justin Anderson, Founder Hypercat Alliance
International Imaging Industry Association (I3A) Semantic Web, Graphics

Chris Lilley

James A. Peyton

(through Technical Liaison Group)

URI, IDN, Generic Liaisons, Auctions
Wendy Seltzer, Jeff Jaffe CEO, Chairman, board members, staff
International Color Consortium (ICC) Graphics, CSS Chris Lilley William Li
ICT Standardization Steering Group, DG Enterprise Generic Liaisons Rigo Wenning

Kiritkumar Lathia

Isabelle Valet-Harper

Anne Lehouck

International Digital Publishing Forum (EPUB/OpenEBook - IDPF– AAL WG) See Merger
Ivan Herman

Koji Ishii (CSS)

Jun Fujisawa (SVG)

Brady Duga (Style)

IEEE Standards Generic Liaisons

Jeff Jaffe

Karen McCabe (OpenStand)
The Internet Engineering Task Force (IETF) Security, Privacy, WebRTC, Web of Things.

Generic Liaisons, I*

Wendy Seltzer, Samuel Weiler,
see also: public-ietf-w3c
Philippe Le Hégaret (for media types),

Jeff Jaffe

Martin Thomson

Leslie Daigle, Russ Housley (OpenStand)

IFAA (Internet Finance Authentiation Alliance) Web Payments, Security

Wendy Seltzer

Wenbo Yang
The Internet Governance Forum (IGF) Generic Liaisons

Wendy Seltzer

Shadi Abou-Zahra

IGF UN Secretary, chair
IGF Dynamic Coalition on Accessibility and Disability (DCAD) WAI Shadi Abou-Zahra Andrea Saks
IMS Global Learning Consortium, Inc. WAI Judy Brewer Jutta Treviranus
Industrial Internet Consortium (IIC) Web of Things Dave Raggett

Skyler Lew Stephen Mellor

Industry 4.0 Web of Things Dave Raggett Prof Diedrich (Universität Magdeburg)
IPTV Forum Japan Media and Entertainment, HTML, DAP, WebApps

Kazuyuki Ashimura (Media and Entertainment, HTML), Dominique Hazaël-Massieux (DAP),

Shozo Fukui
International Press Telecommunications Council (IPTC) Semantic Web

Ivan Herman

Misha Wolf

Michael Steidl

ISO JTC 1 PAS status, ARO Generic Liaisons Jeff Jaffe, Judy Brewer
Norbert Bensalem, PAS Mentor, IBM

Karen Higginbottom JTC 1 secretary

ISO JTC1/SC2 and its WG2

(Class C Liaison)

I18N Richard Ishida Mike Ksar

(Class C Liaison)

Graphics, PNG Chris Lilley Jean Stride

(Class C Liaison)

XML and Dublin Core Ivan Herman Jim Melton
(Class C Liaison)
Digital Publishing
Ivan Herman
Makoto Murata

Shadi Abou-Zahra

Judy Brewer

Janina Sajka

(Class C Liaison)



Chris Lilley

David Singer

Ms. Mayumi Koike


(Class C Liaison)

Graphics, Media and Entertainment

Fonts, Timed Text

Atsushi Shimono (Timed Text)
Chris Lilley (SVG, Fonts)

Kazuyuki Ashimura (Media and Entertainment)

Dr. Jean-Claude Dufourd

See the XG liaison statement

Ms. Mayumi Koike

Secretary, SC 29

Vladimir Levantovsky

ISO TC 68/ WG 4

(Class D Liaison)

Web Services (on ISO side: Financial services)

Yves Lafon

Matthew Rawlings
ISO TC 68, TG1 (Card standards) and WG10 (mobile financial services)

(Class D Liaison)

Web Payments (on ISO side: Financial services) Ian Jacobs Clément CHEVAUCHÉ
ISO 20022 Registration Management Group.

(Class D Liaison)

Web Payments Ian Jacobs Tom Dunbar, Kris Ketels
ISO/IEC JTC 1/SC 41 Web of Things Dave Raggett

Sangkeun YOO

ISO TC 204 Intelligent Transportation Systems/WG 1, 3, 9, 10, 14 Automotive Ted Guild

Adrian Guan

ISO TC 211 Geographic information Spatial Data on the Web Ted Guild

Mats Åhlin

ISO TC 22/SC 31/WG 5,6,8,10 Extended Vehicle Automotive Ted Guild

Eric Wern

ISOC Generic Liaisons Jeff Jaffe Kathy Brown
ITIC WAI Judy Brewer Ken Saelets,
Don Deutsch
International Telecommunication Union (ITU) Generic Liaisons Shadi Abou-Zahra Various ITU staff
ITU-T Focus Group on Driver Distraction MMI Kazuyuki Ashimura Scott Pennock ITU-T
ITU-T Group 13 MMI Kazuyuki Ashimura Gyu Myoung Lee
ITU-T SG13 Focus Group on AI for autonomous and assisted driving (FG-AI4AD) Automotive Ted Guild Bryn Balcombe
ITU-T Group 16 IPTV Media and Entertainment, Web-based Signage

Kazuyuki Ashimura

Shigeya Suzuki

SG16 Secretariat (Simão Campos, Rosa Angeles-León de Vivero)
ITU-T Group 20 Web of Things Kazuyuki Ashimura, Jeff Jaffe Gyu Myoung Lee, Cristina Bueti
ITU Joint Coordination Activity for Identity Management (JCA-IdM) Decentralized Identity Ivan Herman Jace Park
IW3C2 International WWW Conference Committee Communications Ivan Herman Wendy Hall
Japanese Industrial Standards Committee, X 8341-3 Working Group 2 WAI Judy Brewer, Shadi Abou-Zahra Makoto Ueki (InfoAxia)
Khronos Group Immersive Web, WebGPU Community Group, Accessible Platform Architecture Working Group Dominique Hazael-Massieux Neil Trevett
Linux Foundation Core Infrastructure Initiative Security Wendy Seltzer Emily Ratliff
MovieLabs Media and Entertainment François Daoust AC Rep
National Information Society Agency (NIA) WAI Judy Brewer Joon-Ho Hyun
Organization for the Advancement of Structured Information Standards (OASIS)

W3C Member

Generic Liaisons,



SVG (ODF liaison)

Jeff Jaffe

Daniel Greenwood (MIT), LegalXML eContracts Committee

Digital Signatures Extended (DSS-X) TC: Juan Carlos Cruellas
eXtensible Access Control Markup Language (XACML) TC: Hal Lockhart
Security Services (SAML) TC: Hal Lockhart
Web Services Federation TC: Mike McIntosh (through Bruce Rich)
Web Services Secure Exchange (WS-SX) TC: Hal Lockhart, Frederick Hirsch

Scott McGrath, OASIS, Senior Director of Member Services
Michael Brauer, ODF TC
Rob Weir, ODF TC

Automotive ISAC Automotive Ted Guild AutoISAC Analyst
Open Connectivity Foundation (OCF) Media and Entertainment, Testing, Web of Things, MMI Kazuyuki Ashimura
Dave Raggett
Michael Richmond,
Clarke Stevens,
David McCall,
Scott Lofgren,
Daniel Park
OECD ITAC Generic Liaisons, Privacy, Open Standard

Rigo Wenning, Wendy Seltzer

Christine Runnegar, ISOC
Open Geospatial Consortium (OGC) Spatial Data on the Web Ted Guild Scott Simmons, Ingo Simonis
OMA Open Mobile Alliance

(expired MoU with OMA)

CSS, Graphics HTML, MMI, Federated Social Web Chris Lilley,Dominique Hazael-Massieux
Kieran McAleese

Kimmo Halonen

Mobile Web Initiative: Jari Alvinen

Federated Social Web: Goix Laurent Walter

Victoria Gray.

Object Management Group (OMG) Web Services, DOM Philippe Le Hégaret James Nemiah
OneM2M Web of Things Dave Raggett Yongjing Zhang
OpenMath Society MathML Bert Bos

David Carlisle

OPC Foundation Web of Things Dave Raggett Stefan Hoppe
Open Web Application Security Project (OWASP)

Security, Privacy, TAG

Wendy Seltzer Sebastien Deleersnyder
Semantic Web Science Association (SWSA) Semantic Web, eGov Ivan Herman James Hendler
SMPTE Media and Entertainment,
Timed Text
Thierry Michel,
Philippe Le Hégaret
Mike Dolan
PCI Security Council Web Payments Ian Jacobs Lauren Holloway, Troy Leach
The Open Group Generic Liaisons, Web of Things

Dave Raggett

 Scott Hansen; Chris Harding
Telecommunications Technology Association (TTA) Media and Entertainment Kazuyuki Ashimura
DongHoon Lee
Trillium-II Data Eric Prud'hommeaux  Harold Solbrig
Unicode I18N Richard Ishida  Mark Davis
UNESCO I18N, WAI, Generic Liaisons Richard Ishida, Shadi Abou-Zahra Axel Plathe, Claudio Menezes, Irmgarda Kasinskaite
US Payments Forum Web Payments Ian Jacobs Randy Vanderhoof
Vendorcom Forum Web Payments J. Alan Bird Paul Rogers
VoiceXML Forum

(MoU with VoiceXML Forum)

Voice Browser, MMI Kazuyuki Ashimura Michelle Hunt
Web3D Consortium

(W3C Member)

Generic Liaisons
Chris Lilley Don Brutzman

Mission of W3C International Liaisons

W3C is determined to improve W3C's liaisons with international organizations in the areas of policy and standardization and to reinforce W3C's commitment to developing one Web for all.

International Relations focuses on spreading W3C's messages and technologies beyond the Consortium's usual geographical and Web community frontiers. We pursue the vision and plan outlined in the white paper Worldwide Participation in the World Wide Web Consortium with the goal of making it easier for new stakeholders to discover and participate in W3C's work and values.

Contacting W3C to Establish a Liaison

To inquire about W3C liaisons and partnerships, or to ask for review of documents in case of existing liaisons, please send email to team-liaisons@w3.org which will reach various W3C staff members active in the liaisons area and end up in the right technical staff. Please see the public International Relations page of W3C for background. We have additional specific information about participation in W3C by EU-funded projects.

For relationships between W3C and government driven organizations like ISO, ITU, EU normalization (ETSI, CEN), UN efforts like IGF/WSIS, national bodies (ANSI, AFNOR, etc.), and for Internet Governancel liaison activities with other Internet organizations like IETF, ICANN, ISOC, also use team-liaisons@w3.org.

About the Liaison Table

Each entry in the table above includes:

  • the name of the organization, linked to its homepage. In addition, formal agreements, like MoU, should be listed here.
  • the W3C activities or technologies affected by the liaison
  • one or several contact names within W3C
  • one or several liaison contact names (preferrably using an http URL, rather than a mailto)

For more information about a particular liaison, please refer to the contact page for the listed individual(s).

When an external organization wants to send an ingoing liaison statement to W3C, it should send it to team-liaisons@w3.org, CCing the W3C staff in contact indicated the table above, and assume that this statement will potentially be shared with the entire W3C membership.

When an internal W3C group (usually a chair) wants to send an outgoing liaison statement from W3C, it should CC it to team-liaisons@w3.org and to the W3C staff contact for the group, and assume that this statement will potentially be shared with the entire W3C membership.

Considerations When Establishing a Liaison

W3C finds its liaisons fall into two categories:

We list both types of liaisons in the table above. Per the W3C Process Document, all liaisons, of any kind, must be coordinated by the Team due to requirements for public communication, IPR or confidentiality policies. Mutual membership agreements are also possible.

W3C may choose not to pursue a liaison with an organization that has selective or arbitrary membership policies that serve only to benefit pre-existing or dominant members.

To request any information about W3C liaisons, please send a brief email to the liaison contact.

Simple liaisons

In general, the goal of a simple liaison is for both parties to gain a better understanding of their respective activities and look for opportunities to work together. For example, W3C appreciates understanding how other organizations use W3C technology, whether they require extensions, the proper way to manage those extensions, how to bring extensions back into W3C, and so on. Other organizations may find a simple liaison valuable for soliciting W3C input on a Web-related question.

Most often, W3C establishes simple liaisons with peer organizations, other standards bodies, or any other non-profit entity that may wish to build consensus around an emerging Web technology. Simple liaisons are active as soon as both partie agree to make the information public in this page. Note that being in simple liaison with W3C on a given topic doesn't mean that W3C endorses or agrees to the other party work in any way.

Formal Agreements for Joint Work

In some cases, W3C is asked to establish a formal liaison that has a contractual framework, either because there are joint deliverables, or an agreed share of technical responsibilities with coordination, with considerations for confidentiality, shared press coverage, or IPR.

While W3C supports all liaisons with other groups, the organization and development of these formal liaisons requires time and resources, and the agreement of the W3C membership at large, so. W3C's decision to pursue a liaison with a Partner is ultimately based on the perceived costs and benefits.

For an historical record of how Formal Liaisons are created, please see the 2003 Process Document, which used to described the details (no longer the case in the current Process).

W3C and De Jure Standards

This section describes some of W3C's relationships with de jure bodies such as ISO, in addition to the direct technical activity liaisons mentioned above.

W3C is an "ISO/IEC JTC 1 PAS" Submitter

At the end of October 2010, W3C was approved as a JTC 1 Recognized PAS Submitter for an overall scope defined as "any stable core Web technologies produced by W3C that are also in scope of JTC 1". The PAS process is standard transposition procedure whereby organizations accredited as valid PAS Submitters can send their specifications directly for country voting, to become ISO/IEC standards. See the W3C PAS Submission FAQ.

W3C Approved RS Originator Organization (ARO) Status for ISO/JTC1

In January 2007, W3C became an Approved RS Originator Organization (ARO) for ISO/JTC1. This means that ISO/JTC1 standards may refer to W3C Recommendations "as-is." That process is described in the Letter Ballot on the JTC 1 Standing Document on Normative References

W3C in the EU Multi Stakeholders Platform for ICT (MSP)

The Reform of the European standardisation system by the Council of the European Union (2012) now allows civil servants to use and refer to specifications from open standardization fora and consortia such as W3C in situations involving public funds, The Multistakeholder Platform (MSP) was set up as part of the reform to advise the Commission on its ICT Standardization work program and W3C is part of it.

For more information about W3C's ARO or PAS status, please contact  team-liaisons@w3.org.