Emerald Community Engagement Champion
Detailed schedule
This page provides a compact view of all meetings and events during TPAC. Click on each event to get more details, including dial-in information and meeting agenda, where available.
W3C meetings operate under the W3C Code of Conduct. and the W3C Antitrust and Competition Policy.
Also, don't take photos of people with red lanyards.
Note: The times for registration, lunches and breaks are different on each day. Please make sure you consult the schedule below.
Tuesday 28 October – AC
session
A virtual-only Advisory Committee session will be held from 13:30 to 15:00 UTC
Join us for a highlight of Member work, for governance and corporate updates.
An Advisory Committee and Community session is planned during TPAC on Wednesday 12 November from 13:30 to 14:30 Japan Standard time. More details about the agenda, will be available shortly.
Wednesday 29 October – Get
ready for TPAC
If you are attending TPAC for the first time, join us for a warm welcome and general introduction to W3C.
The session will be held virtually from 14:00 to 15:00 UTC.
Sunday 9 November – Kobe
Developer Meetup
Join us to hear insightful talks and network with the Kobe developer community.
The event will be held from 17:00 to 20:00 Tokyo time, at Anchor Kobe.
This event is co-organized by NTT Docomo Business and W3C, and sponsored by Kobe Digital Lab, Google and Asratec.
TPAC 2025
Monday 10 November
TPAC 2025Monday 10 November
Registration opens at - Kobe International Conference Center, 3F
Group meetings will be held from to
Breakout sessions will be held from to
Breaks (drinks and snacks) will be available from to and from to - Kobe International Convention Center, Reception Hall, 3F, 4F, 5F
Lunch will be available from to - Portopia Hotel, South wing, Ohwada 2/3, 1F
Group meetings and other events
Floor 3 - 302
Floor 3 - 303
Floor 3 - 304
Floor 3 - 305
Floor 3 - 306
Floor 3 - 307
Floor 4 - 401
Floor 4 - 402
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 4 - 406
Floor 5 - 501
Floor 5 - 502
Floor 5 - 503
Floor 5 - 504
Floor 5 - 505
Accessibility Guidelines WG, Floor 4 - 402, –
Accessible Platform Architectures WG, Floor 5 - 503, –
Accessible Rich Internet Applications WG, Floor 5 - 504, –
Advisory Board, Floor 5 - 503, –
Anti-Fraud CG, Floor 4 - 405, –
Audio Description CG, Floor 4 - 404, –
Audio WG, Floor 3 - 304, –
Autonomous Agents on the Web CG, Floor 3 - 306, –
Building it in vs. Bolting it on - Making Accessible Specs, & Updates to the accessibility horizontal review process, Floor 4 - 405, –
Declarative capability access, Floor 5 - 504, –
DID Methods WG Charter Discussion, Floor 4 - 406, –
Documentation CG, Floor 5 - 503, –
Find deterministic sizing rules for free-form documents, Floor 4 - 406, –
Harm & Threat Modeling for National Digital Identities, Floor 5 - 505, –
Internationalization WG, Floor 3 - 305, –
LinkID – Toward a Persistent Identifier Standard for Hyperlinks, Floor 3 - 303, –
Media & Entertainment IG, Floor 4 - 404, –
Media & Entertainment IG, Timed Text WG joint meeting, Floor 4 - 404, –
Payment Authentication on the Web: an Issuer’s Perspective, Floor 4 - 403, –
Publication tooling, Floor 4 - 404, –
Publishing Maintenance WG, Floor 3 - 302, –
Stronger Together: Super-charging Agentic AI with Accessibility Destinations, Floor 3 - 302, –
Technical Architecture Group, Floor 3 - 304, –
Web Application Security WG, Floor 5 - 501, –
Web Applications WG, Floor 4 - 401, –
Web Components CG, Floor 3 - 306, –
Web Fonts WG, Floor 3 - 303, –
Web Machine Learning WG, Floor 4 - 403, –
Web of Things Plugfest, Floor 3 - 307, –
Web Payments WG, Floor 5 - 502, –
Web Performance WG, Floor 5 - 505, –
WebExtensions CG, Floor 4 - 405, –
Why W3C? Motivational Drivers for Participation, Floor 4 - 402, –
Accessibility Guidelines WG, Floor 4 - 402, –
Accessible Platform Architectures WG, Floor 5 - 503, –
Accessible Rich Internet Applications WG, Floor 5 - 504, –
Advisory Board, Floor 5 - 503, –
Anti-Fraud CG, Floor 4 - 405, –
Audio Description CG, Floor 4 - 404, –
Audio WG, Floor 3 - 304, –
Autonomous Agents on the Web CG, Floor 3 - 306, –
Building it in vs. Bolting it on - Making Accessible Specs, & Updates to the accessibility horizontal review process, Floor 4 - 405, –
Declarative capability access, Floor 5 - 504, –
DID Methods WG Charter Discussion, Floor 4 - 406, –
Documentation CG, Floor 5 - 503, –
Find deterministic sizing rules for free-form documents, Floor 4 - 406, –
Harm & Threat Modeling for National Digital Identities, Floor 5 - 505, –
Internationalization WG, Floor 3 - 305, –
LinkID – Toward a Persistent Identifier Standard for Hyperlinks, Floor 3 - 303, –
Media & Entertainment IG, Floor 4 - 404, –
Media & Entertainment IG, Timed Text WG joint meeting, Floor 4 - 404, –
Payment Authentication on the Web: an Issuer’s Perspective, Floor 4 - 403, –
Publication tooling, Floor 4 - 404, –
Publishing Maintenance WG, Floor 3 - 302, –
Stronger Together: Super-charging Agentic AI with Accessibility Destinations, Floor 3 - 302, –
Technical Architecture Group, Floor 3 - 304, –
Web Application Security WG, Floor 5 - 501, –
Web Applications WG, Floor 4 - 401, –
Web Components CG, Floor 3 - 306, –
Web Fonts WG, Floor 3 - 303, –
Web Machine Learning WG, Floor 4 - 403, –
Web of Things Plugfest, Floor 3 - 307, –
Web Payments WG, Floor 5 - 502, –
Web Performance WG, Floor 5 - 505, –
WebExtensions CG, Floor 4 - 405, –
Why W3C? Motivational Drivers for Participation, Floor 4 - 402, –
Breakout sessions
Floor 3 - 302
Floor 3 - 303
Floor 4 - 402
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 4 - 406
Floor 5 - 504
Floor 5 - 505
Building it in vs. Bolting it on - Making Accessible Specs, & Updates to the accessibility horizontal review process, Floor 4 - 405, –
Declarative capability access, Floor 5 - 504, –
Find deterministic sizing rules for free-form documents, Floor 4 - 406, –
Harm & Threat Modeling for National Digital Identities, Floor 5 - 505, –
LinkID – Toward a Persistent Identifier Standard for Hyperlinks, Floor 3 - 303, –
Payment Authentication on the Web: an Issuer’s Perspective, Floor 4 - 403, –
Publication tooling, Floor 4 - 404, –
Stronger Together: Super-charging Agentic AI with Accessibility Destinations, Floor 3 - 302, –
Why W3C? Motivational Drivers for Participation, Floor 4 - 402, –
Building it in vs. Bolting it on - Making Accessible Specs, & Updates to the accessibility horizontal review process, Floor 4 - 405, –
Declarative capability access, Floor 5 - 504, –
Find deterministic sizing rules for free-form documents, Floor 4 - 406, –
Harm & Threat Modeling for National Digital Identities, Floor 5 - 505, –
LinkID – Toward a Persistent Identifier Standard for Hyperlinks, Floor 3 - 303, –
Payment Authentication on the Web: an Issuer’s Perspective, Floor 4 - 403, –
Publication tooling, Floor 4 - 404, –
Stronger Together: Super-charging Agentic AI with Accessibility Destinations, Floor 3 - 302, –
Why W3C? Motivational Drivers for Participation, Floor 4 - 402, –
Legend: group meeting, joint meeting, breakout, other event.
(Tsutomu
Nakauchi Foundation)
TPAC 2025
Tuesday 11 November
TPAC 2025Tuesday 11 November
Registration opens at , Kobe International Conference Center, 3F
Breakout sessions will be held from to
Group meetings will be held from to
Breaks (drinks and snacks) will be available from to and from to - Kobe International Convention Center, Reception Hall, 3F, 4F, 5F
Lunch will be available from to - Portopia Hotel, South wing, Ohwada 2/3, 1F
Group meetings and other events
Floor 3 - 302
Floor 3 - 303
Floor 3 - 304
Floor 3 - 305
Floor 3 - 306
Floor 3 - 307
Floor 4 - 401
Floor 4 - 402
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 4 - 406
Floor 5 - 501
Floor 5 - 502
Floor 5 - 503
Floor 5 - 504
Floor 5 - 505
Accessibility Guidelines WG, Floor 4 - 402, –
Accessible Platform Architectures WG, Floor 5 - 503, –
Accessible Platform Architectures WG, Floor 5 - 503, –
Accessible Rich Internet Applications WG, Floor 5 - 504, –
AI Agent Protocol CG, Floor 4 - 404, –
Annotating WPT to Surface the Status of the Platform, Floor 5 - 505, –
Audio WG, Floor 3 - 304, –
Decentralized Identifier WG, Floor 4 - 406, –
Documentation CG, Floor 4 - 403, –
DOM Localization, Floor 3 - 303, –
Internationalization WG, Floor 3 - 305, –
Media Content Metadata: Practical Approaches for Cross-Industry Collaboration, Floor 3 - 302, –
Mobile student ID implementation into Japanese society., Floor 4 - 401, –
Privacy Pass for digital ads verification, Floor 4 - 404, –
Publishing Business Group, Floor 3 - 302, –
Publishing Maintenance WG, Floor 3 - 302, –
RDF & SPARQL WG, Floor 4 - 404, –
Restarting W3C QA - Quality Assurance, Floor 5 - 504, –
Security guidance for web developers, Floor 4 - 403, –
Timed Text WG, Floor 3 - 306, –
TPAC 2025 Hackathon, Floor 5 - 501, –
WCAG 2.2 & non-Latin languages, Floor 4 - 402, –
Web Application Security WG, Floor 4 - 403, –
Web Applications WG, Floor 4 - 401, –
Web Machine Learning CG, Floor 4 - 405, –
Web of Things Plugfest, Floor 3 - 307, –
Web Payments WG, Web Authentication WG joint meeting, Floor 5 - 502, –
Web Payments WG, Floor 5 - 502, –
Web Performance WG, Floor 5 - 505, –
Web Real-Time Communications WG, Floor 4 - 404, –
WebSpatial API for Spatialized HTML/CSS & Spatialized PWAs on spatial & multimodal AI devices, Floor 4 - 406, –
WebView quirks & testing, Floor 4 - 405, –
WHATWG, Floor 5 - 501, –
Accessibility Guidelines WG, Floor 4 - 402, –
Accessible Platform Architectures WG, Floor 5 - 503, –
Accessible Platform Architectures WG, Floor 5 - 503, –
Accessible Rich Internet Applications WG, Floor 5 - 504, –
AI Agent Protocol CG, Floor 4 - 404, –
Annotating WPT to Surface the Status of the Platform, Floor 5 - 505, –
Audio WG, Floor 3 - 304, –
Decentralized Identifier WG, Floor 4 - 406, –
Documentation CG, Floor 4 - 403, –
DOM Localization, Floor 3 - 303, –
Internationalization WG, Floor 3 - 305, –
Media Content Metadata: Practical Approaches for Cross-Industry Collaboration, Floor 3 - 302, –
Mobile student ID implementation into Japanese society., Floor 4 - 401, –
Privacy Pass for digital ads verification, Floor 4 - 404, –
Publishing Business Group, Floor 3 - 302, –
Publishing Maintenance WG, Floor 3 - 302, –
RDF & SPARQL WG, Floor 4 - 404, –
Restarting W3C QA - Quality Assurance, Floor 5 - 504, –
Security guidance for web developers, Floor 4 - 403, –
Timed Text WG, Floor 3 - 306, –
TPAC 2025 Hackathon, Floor 5 - 501, –
WCAG 2.2 & non-Latin languages, Floor 4 - 402, –
Web Application Security WG, Floor 4 - 403, –
Web Applications WG, Floor 4 - 401, –
Web Machine Learning CG, Floor 4 - 405, –
Web of Things Plugfest, Floor 3 - 307, –
Web Payments WG, Web Authentication WG joint meeting, Floor 5 - 502, –
Web Payments WG, Floor 5 - 502, –
Web Performance WG, Floor 5 - 505, –
Web Real-Time Communications WG, Floor 4 - 404, –
WebSpatial API for Spatialized HTML/CSS & Spatialized PWAs on spatial & multimodal AI devices, Floor 4 - 406, –
WebView quirks & testing, Floor 4 - 405, –
WHATWG, Floor 5 - 501, –
Breakout sessions
Floor 3 - 302
Floor 3 - 303
Floor 4 - 401
Floor 4 - 402
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 4 - 406
Floor 5 - 504
Floor 5 - 505
Annotating WPT to Surface the Status of the Platform, Floor 5 - 505, –
DOM Localization, Floor 3 - 303, –
Media Content Metadata: Practical Approaches for Cross-Industry Collaboration, Floor 3 - 302, –
Mobile student ID implementation into Japanese society., Floor 4 - 401, –
Privacy Pass for digital ads verification, Floor 4 - 404, –
Restarting W3C QA - Quality Assurance, Floor 5 - 504, –
Security guidance for web developers, Floor 4 - 403, –
WCAG 2.2 & non-Latin languages, Floor 4 - 402, –
WebSpatial API for Spatialized HTML/CSS & Spatialized PWAs on spatial & multimodal AI devices, Floor 4 - 406, –
WebView quirks & testing, Floor 4 - 405, –
Annotating WPT to Surface the Status of the Platform, Floor 5 - 505, –
DOM Localization, Floor 3 - 303, –
Media Content Metadata: Practical Approaches for Cross-Industry Collaboration, Floor 3 - 302, –
Mobile student ID implementation into Japanese society., Floor 4 - 401, –
Privacy Pass for digital ads verification, Floor 4 - 404, –
Restarting W3C QA - Quality Assurance, Floor 5 - 504, –
Security guidance for web developers, Floor 4 - 403, –
WCAG 2.2 & non-Latin languages, Floor 4 - 402, –
WebSpatial API for Spatialized HTML/CSS & Spatialized PWAs on spatial & multimodal AI devices, Floor 4 - 406, –
WebView quirks & testing, Floor 4 - 405, –
Legend: group meeting, joint meeting, breakout, other event.
TPAC 2025
Wednesday 12 November
TPAC 2025Wednesday 12 November
Registration opens at , Kobe International Conference Center, 3F
Breakout sessions will be held from to and from to
The Advisory Committee and Community session will be held from to
Breaks (drinks and snacks) will be available from to and from to - Kobe International Convention Center, Reception Hall, 3F, 4F, 5F
Lunch will be available from to - Portopia Hotel, South wing, Ohwada 2/3, 1F
An evening reception will be held from 19:00 to 21:00 - Portopia Hotel, South wing, Ohwada 2/3, 1F
Today's events
301 International Conference Room
Floor 3 - 302
Floor 3 - 303
Floor 3 - 307
Floor 4 - 401
Floor 4 - 402
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 4 - 406
Floor 5 - 504
Floor 5 - 505
Portopia Hotel, South wing, Ohwada 2/3, 1F
A Foundation for a Decentralized User-centric Web Mapping : The Hyper-Layering Architecture, Floor 4 - 406, –
A Lean4-Verified Protocol for Smart Cities Addressing the Three Core Challenges of DIDs & VCs, Floor 3 - 302, –
Accelerating the adoption of modern web features, & migrating away from outdated approaches, Floor 5 - 505, –
Accessibility Compat Data Update, Floor 3 - 302, –
Accessibility Maturity Model Group Note Update, Floor 5 - 504, –
Accessibility Roles & Responsibilities Mapping (ARRM), Floor 4 - 402, –
Advisory Committee & Community Session, 301 International Conference Room, –
Age-Based Restrictions Have Come for the Web, Floor 4 - 402, –
Agentic Browsing & the Web's Security Model, Floor 4 - 401, –
AI Agents & The Web, Floor 4 - 401, –
CG Specification Communication Enhancements, Floor 4 - 404, –
Converged Use Cases for the Credential Management API, Floor 5 - 505, –
Convertible Devices Brainstorming, Floor 5 - 504, –
Cryptography Usage Guideline in Web Standards, Floor 5 - 504, –
Custom attributes for all elements, Floor 4 - 404, –
Customizable select & combobox, Floor 4 - 406, –
Declarative Partial Updates - Customizing navigation experience, Floor 5 - 504, –
Defining a new Locale: Standard Measures with U.S. English, Floor 4 - 403, –
Design & Implementation of the Agent Network Protocol (ANP), Floor 4 - 403, –
Digital Identity Wallet Project in Taiwan: Entering the Second Year, Floor 4 - 403, –
Dynamic Accessibility Remediation: A report from the Accessibility at the Edge CG, Floor 4 - 402, –
Ecma Beyond ECMAScript—Highlights from some of the other 55 Technical Committees (take two), Floor 4 - 405, –
Effective & trustworthy conformance evaluation for WCAG & beyond, Floor 5 - 505, –
Email Verification Protocol, Floor 5 - 504, –
Enabling Effective AC Participation, Floor 5 - 505, –
Fixing HTML element references (IDREFs) on the Web, Floor 4 - 406, –
For Everyone: Towards a Sustainable Future for Independent Standards Work, Floor 4 - 402, –
Future of the Open Web, Floor 4 - 401, –
Geolocation & Privacy, Floor 5 - 505, –
Human Rights & Web Standards?, Floor 4 - 403, –
Identity Systems & Threats: Towards a Holistic View, Floor 4 - 402, –
Introducing an HTML <amount> Element, Floor 4 - 405, –
Introducing the Cybernetic Avatar CG: Extending Human Presence through the Internet, Floor 3 - 302, –
Involving students & academia in web platform implementation, Floor 3 - 303, –
Isolated Web Apps - Current state & future direction, Floor 4 - 406, –
Lighter weight standards processes by using a cross-translating PL to craft reference implementations, Floor 4 - 405, –
Low-level RTC Transport API, Floor 4 - 404, –
Mitigate Threats for Digital Credentials API: Episode III - Revenge of the Wallet, Floor 3 - 303, –
Modular Web Engines, Floor 3 - 302, –
New approach to solving client-side security, Floor 4 - 403, –
Originator Profile Overview & further discussions, Floor 4 - 405, –
Permissions & pre-prompts: Providing good context to users, Floor 4 - 401, –
Private Cross-Origin/Site Prefetch, Floor 4 - 404, –
QR Codes as first class citizens of the Web, Floor 3 - 303, –
Semantics for the Agentic Web, Floor 4 - 401, –
Supporting window transparency - challenges & opportunities, Floor 4 - 405, –
Sustainable Web IG Update for the Web Sustainability Guidelines, Floor 3 - 302, –
SVG Interoperability, Floor 5 - 504, –
Tell Us What's Wrong with the Process, Floor 3 - 303, –
The Future of Assistive Tech Interoperability with ARIA-AT, Floor 5 - 505, –
TPAC evening reception, Portopia Hotel, South wing, Ohwada 2/3, 1F, –
Updates on Servo, Floor 4 - 401, –
W3C Threat Modeling Guide & the Threat Model for the Web, Floor 4 - 403, –
WCAG 3 update, Floor 4 - 402, –
WCAG2Mobile: presentation, explanation, feedback, Floor 3 - 303, –
Web Engines Hackfest / TPAC 2, Floor 4 - 406, –
Web of Things Live Demonstration, Floor 3 - 307, –
Web platform features to enable biometric liveness detection, Floor 3 - 302, –
Web Speech API: New Features & Future Directions, Floor 4 - 404, –
Web-based Digital Twins for Smart Cities, Floor 4 - 404, –
WinterTC, Floor 4 - 406, –
A Foundation for a Decentralized User-centric Web Mapping : The Hyper-Layering Architecture, Floor 4 - 406, –
A Lean4-Verified Protocol for Smart Cities Addressing the Three Core Challenges of DIDs & VCs, Floor 3 - 302, –
Accelerating the adoption of modern web features, & migrating away from outdated approaches, Floor 5 - 505, –
Accessibility Compat Data Update, Floor 3 - 302, –
Accessibility Maturity Model Group Note Update, Floor 5 - 504, –
Accessibility Roles & Responsibilities Mapping (ARRM), Floor 4 - 402, –
Advisory Committee & Community Session, 301 International Conference Room, –
Age-Based Restrictions Have Come for the Web, Floor 4 - 402, –
Agentic Browsing & the Web's Security Model, Floor 4 - 401, –
AI Agents & The Web, Floor 4 - 401, –
CG Specification Communication Enhancements, Floor 4 - 404, –
Converged Use Cases for the Credential Management API, Floor 5 - 505, –
Convertible Devices Brainstorming, Floor 5 - 504, –
Cryptography Usage Guideline in Web Standards, Floor 5 - 504, –
Custom attributes for all elements, Floor 4 - 404, –
Customizable select & combobox, Floor 4 - 406, –
Declarative Partial Updates - Customizing navigation experience, Floor 5 - 504, –
Defining a new Locale: Standard Measures with U.S. English, Floor 4 - 403, –
Design & Implementation of the Agent Network Protocol (ANP), Floor 4 - 403, –
Digital Identity Wallet Project in Taiwan: Entering the Second Year, Floor 4 - 403, –
Dynamic Accessibility Remediation: A report from the Accessibility at the Edge CG, Floor 4 - 402, –
Ecma Beyond ECMAScript—Highlights from some of the other 55 Technical Committees (take two), Floor 4 - 405, –
Effective & trustworthy conformance evaluation for WCAG & beyond, Floor 5 - 505, –
Email Verification Protocol, Floor 5 - 504, –
Enabling Effective AC Participation, Floor 5 - 505, –
Fixing HTML element references (IDREFs) on the Web, Floor 4 - 406, –
For Everyone: Towards a Sustainable Future for Independent Standards Work, Floor 4 - 402, –
Future of the Open Web, Floor 4 - 401, –
Geolocation & Privacy, Floor 5 - 505, –
Human Rights & Web Standards?, Floor 4 - 403, –
Identity Systems & Threats: Towards a Holistic View, Floor 4 - 402, –
Introducing an HTML <amount> Element, Floor 4 - 405, –
Introducing the Cybernetic Avatar CG: Extending Human Presence through the Internet, Floor 3 - 302, –
Involving students & academia in web platform implementation, Floor 3 - 303, –
Isolated Web Apps - Current state & future direction, Floor 4 - 406, –
Lighter weight standards processes by using a cross-translating PL to craft reference implementations, Floor 4 - 405, –
Low-level RTC Transport API, Floor 4 - 404, –
Mitigate Threats for Digital Credentials API: Episode III - Revenge of the Wallet, Floor 3 - 303, –
Modular Web Engines, Floor 3 - 302, –
New approach to solving client-side security, Floor 4 - 403, –
Originator Profile Overview & further discussions, Floor 4 - 405, –
Permissions & pre-prompts: Providing good context to users, Floor 4 - 401, –
Private Cross-Origin/Site Prefetch, Floor 4 - 404, –
QR Codes as first class citizens of the Web, Floor 3 - 303, –
Semantics for the Agentic Web, Floor 4 - 401, –
Supporting window transparency - challenges & opportunities, Floor 4 - 405, –
Sustainable Web IG Update for the Web Sustainability Guidelines, Floor 3 - 302, –
SVG Interoperability, Floor 5 - 504, –
Tell Us What's Wrong with the Process, Floor 3 - 303, –
The Future of Assistive Tech Interoperability with ARIA-AT, Floor 5 - 505, –
TPAC evening reception, Portopia Hotel, South wing, Ohwada 2/3, 1F, –
Updates on Servo, Floor 4 - 401, –
W3C Threat Modeling Guide & the Threat Model for the Web, Floor 4 - 403, –
WCAG 3 update, Floor 4 - 402, –
WCAG2Mobile: presentation, explanation, feedback, Floor 3 - 303, –
Web Engines Hackfest / TPAC 2, Floor 4 - 406, –
Web of Things Live Demonstration, Floor 3 - 307, –
Web platform features to enable biometric liveness detection, Floor 3 - 302, –
Web Speech API: New Features & Future Directions, Floor 4 - 404, –
Web-based Digital Twins for Smart Cities, Floor 4 - 404, –
WinterTC, Floor 4 - 406, –
Breakout sessions
Floor 3 - 302
Floor 3 - 303
Floor 3 - 307
Floor 4 - 401
Floor 4 - 402
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 4 - 406
Floor 5 - 504
Floor 5 - 505
Accelerating the adoption of modern web features, & migrating away from outdated approaches, Floor 5 - 505, –
Customizable select & combobox, Floor 4 - 406, –
Digital Identity Wallet Project in Taiwan: Entering the Second Year, Floor 4 - 403, –
Ecma Beyond ECMAScript—Highlights from some of the other 55 Technical Committees (take two), Floor 4 - 405, –
Email Verification Protocol, Floor 5 - 504, –
For Everyone: Towards a Sustainable Future for Independent Standards Work, Floor 4 - 402, –
Private Cross-Origin/Site Prefetch, Floor 4 - 404, –
Semantics for the Agentic Web, Floor 4 - 401, –
Sustainable Web IG Update for the Web Sustainability Guidelines, Floor 3 - 302, –
WCAG2Mobile: presentation, explanation, feedback, Floor 3 - 303, –
A Foundation for a Decentralized User-centric Web Mapping : The Hyper-Layering Architecture, Floor 4 - 406, –
Accessibility Maturity Model Group Note Update, Floor 5 - 504, –
Agentic Browsing & the Web's Security Model, Floor 4 - 401, –
CG Specification Communication Enhancements, Floor 4 - 404, –
Dynamic Accessibility Remediation: A report from the Accessibility at the Edge CG, Floor 4 - 402, –
Enabling Effective AC Participation, Floor 5 - 505, –
Human Rights & Web Standards?, Floor 4 - 403, –
Lighter weight standards processes by using a cross-translating PL to craft reference implementations, Floor 4 - 405, –
Modular Web Engines, Floor 3 - 302, –
Convertible Devices Brainstorming, Floor 5 - 504, –
Design & Implementation of the Agent Network Protocol (ANP), Floor 4 - 403, –
Future of the Open Web, Floor 4 - 401, –
Geolocation & Privacy, Floor 5 - 505, –
Introducing the Cybernetic Avatar CG: Extending Human Presence through the Internet, Floor 3 - 302, –
Low-level RTC Transport API, Floor 4 - 404, –
Mitigate Threats for Digital Credentials API: Episode III - Revenge of the Wallet, Floor 3 - 303, –
WCAG 3 update, Floor 4 - 402, –
WinterTC, Floor 4 - 406, –
Age-Based Restrictions Have Come for the Web, Floor 4 - 402, –
AI Agents & The Web, Floor 4 - 401, –
Declarative Partial Updates - Customizing navigation experience, Floor 5 - 504, –
Effective & trustworthy conformance evaluation for WCAG & beyond, Floor 5 - 505, –
Originator Profile Overview & further discussions, Floor 4 - 405, –
Tell Us What's Wrong with the Process, Floor 3 - 303, –
W3C Threat Modeling Guide & the Threat Model for the Web, Floor 4 - 403, –
Web Engines Hackfest / TPAC 2, Floor 4 - 406, –
Web platform features to enable biometric liveness detection, Floor 3 - 302, –
Web-based Digital Twins for Smart Cities, Floor 4 - 404, –
A Lean4-Verified Protocol for Smart Cities Addressing the Three Core Challenges of DIDs & VCs, Floor 3 - 302, –
Accessibility Roles & Responsibilities Mapping (ARRM), Floor 4 - 402, –
Converged Use Cases for the Credential Management API, Floor 5 - 505, –
Cryptography Usage Guideline in Web Standards, Floor 5 - 504, –
Custom attributes for all elements, Floor 4 - 404, –
Introducing an HTML <amount> Element, Floor 4 - 405, –
Involving students & academia in web platform implementation, Floor 3 - 303, –
Isolated Web Apps - Current state & future direction, Floor 4 - 406, –
New approach to solving client-side security, Floor 4 - 403, –
Permissions & pre-prompts: Providing good context to users, Floor 4 - 401, –
Accessibility Compat Data Update, Floor 3 - 302, –
Defining a new Locale: Standard Measures with U.S. English, Floor 4 - 403, –
Fixing HTML element references (IDREFs) on the Web, Floor 4 - 406, –
Identity Systems & Threats: Towards a Holistic View, Floor 4 - 402, –
QR Codes as first class citizens of the Web, Floor 3 - 303, –
Supporting window transparency - challenges & opportunities, Floor 4 - 405, –
SVG Interoperability, Floor 5 - 504, –
The Future of Assistive Tech Interoperability with ARIA-AT, Floor 5 - 505, –
Updates on Servo, Floor 4 - 401, –
Web of Things Live Demonstration, Floor 3 - 307, –
Web Speech API: New Features & Future Directions, Floor 4 - 404, –
Accelerating the adoption of modern web features, & migrating away from outdated approaches, Floor 5 - 505, –
Customizable select & combobox, Floor 4 - 406, –
Digital Identity Wallet Project in Taiwan: Entering the Second Year, Floor 4 - 403, –
Ecma Beyond ECMAScript—Highlights from some of the other 55 Technical Committees (take two), Floor 4 - 405, –
Email Verification Protocol, Floor 5 - 504, –
For Everyone: Towards a Sustainable Future for Independent Standards Work, Floor 4 - 402, –
Private Cross-Origin/Site Prefetch, Floor 4 - 404, –
Semantics for the Agentic Web, Floor 4 - 401, –
Sustainable Web IG Update for the Web Sustainability Guidelines, Floor 3 - 302, –
WCAG2Mobile: presentation, explanation, feedback, Floor 3 - 303, –
A Foundation for a Decentralized User-centric Web Mapping : The Hyper-Layering Architecture, Floor 4 - 406, –
Accessibility Maturity Model Group Note Update, Floor 5 - 504, –
Agentic Browsing & the Web's Security Model, Floor 4 - 401, –
CG Specification Communication Enhancements, Floor 4 - 404, –
Dynamic Accessibility Remediation: A report from the Accessibility at the Edge CG, Floor 4 - 402, –
Enabling Effective AC Participation, Floor 5 - 505, –
Human Rights & Web Standards?, Floor 4 - 403, –
Lighter weight standards processes by using a cross-translating PL to craft reference implementations, Floor 4 - 405, –
Modular Web Engines, Floor 3 - 302, –
Convertible Devices Brainstorming, Floor 5 - 504, –
Design & Implementation of the Agent Network Protocol (ANP), Floor 4 - 403, –
Future of the Open Web, Floor 4 - 401, –
Geolocation & Privacy, Floor 5 - 505, –
Introducing the Cybernetic Avatar CG: Extending Human Presence through the Internet, Floor 3 - 302, –
Low-level RTC Transport API, Floor 4 - 404, –
Mitigate Threats for Digital Credentials API: Episode III - Revenge of the Wallet, Floor 3 - 303, –
WCAG 3 update, Floor 4 - 402, –
WinterTC, Floor 4 - 406, –
Age-Based Restrictions Have Come for the Web, Floor 4 - 402, –
AI Agents & The Web, Floor 4 - 401, –
Declarative Partial Updates - Customizing navigation experience, Floor 5 - 504, –
Effective & trustworthy conformance evaluation for WCAG & beyond, Floor 5 - 505, –
Originator Profile Overview & further discussions, Floor 4 - 405, –
Tell Us What's Wrong with the Process, Floor 3 - 303, –
W3C Threat Modeling Guide & the Threat Model for the Web, Floor 4 - 403, –
Web Engines Hackfest / TPAC 2, Floor 4 - 406, –
Web platform features to enable biometric liveness detection, Floor 3 - 302, –
Web-based Digital Twins for Smart Cities, Floor 4 - 404, –
A Lean4-Verified Protocol for Smart Cities Addressing the Three Core Challenges of DIDs & VCs, Floor 3 - 302, –
Accessibility Roles & Responsibilities Mapping (ARRM), Floor 4 - 402, –
Converged Use Cases for the Credential Management API, Floor 5 - 505, –
Cryptography Usage Guideline in Web Standards, Floor 5 - 504, –
Custom attributes for all elements, Floor 4 - 404, –
Introducing an HTML <amount> Element, Floor 4 - 405, –
Involving students & academia in web platform implementation, Floor 3 - 303, –
Isolated Web Apps - Current state & future direction, Floor 4 - 406, –
New approach to solving client-side security, Floor 4 - 403, –
Permissions & pre-prompts: Providing good context to users, Floor 4 - 401, –
Accessibility Compat Data Update, Floor 3 - 302, –
Defining a new Locale: Standard Measures with U.S. English, Floor 4 - 403, –
Fixing HTML element references (IDREFs) on the Web, Floor 4 - 406, –
Identity Systems & Threats: Towards a Holistic View, Floor 4 - 402, –
QR Codes as first class citizens of the Web, Floor 3 - 303, –
Supporting window transparency - challenges & opportunities, Floor 4 - 405, –
SVG Interoperability, Floor 5 - 504, –
The Future of Assistive Tech Interoperability with ARIA-AT, Floor 5 - 505, –
Updates on Servo, Floor 4 - 401, –
Web of Things Live Demonstration, Floor 3 - 307, –
Web Speech API: New Features & Future Directions, Floor 4 - 404, –
Legend: group meeting, joint meeting, breakout, other event.
TPAC 2025
Thursday 13 November
TPAC 2025Thursday 13 November
A WG/IG chairs breakfast will be held from 07:30 to 08:45 -
room Nunobiki, B1F, Portopia hotel
Registration opens at , Kobe International Conference Center, 3F
Group meetings will be held from to
Breakout sessions will be held from to
Breaks (drinks and snacks) will be available from to and from to - Kobe International Convention Center, Reception Hall, 3F, 4F, 5F
Lunch will be available from to - Portopia Hotel, South wing, Ohwada 2/3, 1F
Group meetings
Floor 3 - 302
Floor 3 - 303
Floor 3 - 304
Floor 3 - 305
Floor 3 - 306
Floor 4 - 401
Floor 4 - 402
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 4 - 406
Floor 5 - 501
Floor 5 - 502
Floor 5 - 503
Floor 5 - 504
Floor 5 - 505
Portopia Hotel, Nunobiki, B1F
Accessibility Guidelines WG: WCAG Backlog TF, Floor 4 - 406, –
Accessible Rich Internet Applications WG, Accessible Platform Architectures WG joint meeting, Floor 4 - 403, –
AI Driven Web Standards Specification, Floor 3 - 303, –
Autofill for dynamically changing forms, Floor 4 - 403, –
Cascading Style Sheets (CSS) WG, Floor 5 - 502, –
Chairs breakfast, Portopia Hotel, Nunobiki, B1F, –
Chinese Web IG, Floor 3 - 306, –
Cookies, Floor 4 - 401, –
Devices & Sensors WG, Web Applications WG Joint meeting, Floor 5 - 503, –
Devices & Sensors WG, Floor 5 - 504, –
Documentation CG, Floor 3 - 306, –
Federated Identity WG, Floor 4 - 401, –
Media & Entertainment IG, Timed Text WG, Accessible Platform Architectures WG joint meeting, Floor 4 - 403, –
Media WG, Web Real-Time Communications WG joint meeting, Floor 5 - 503, –
Navigating the Future, Floor 4 - 405, –
Private Advertising Technology WG, Floor 5 - 504, –
PWA Widgets, Floor 4 - 404, –
State of Web Monetization, Floor 5 - 504, –
Sustainable Web IG, Floor 3 - 304, –
Sustainable Web IG, Accessibility Guidelines WG joint meeting, Floor 4 - 404, –
Sustainable Web IG, Web Performance WG joint meeting, Floor 4 - 404, –
W3C Global Chapters & Evangelists Meeting, Floor 3 - 304, –
Web Authentication WG, Floor 4 - 401, –
Web Editing WG, Floor 3 - 305, –
Web of Things WG, Web of Things IG joint meeting, Floor 3 - 302, –
Web Payment Security IG, Floor 4 - 405, –
Web Payment Security IG, Anti-Fraud CG Joint Meeting, Floor 4 - 405, –
Web Performance WG, Floor 5 - 505, –
Web Platform Incubator CG, Floor 4 - 402, –
Web Real-Time Communications WG, Floor 4 - 404, –
WebExtensions CG, Floor 3 - 303, –
WebTransport WG, Floor 4 - 404, –
WHATWG, Floor 5 - 501, –
Why the issuer-holder-verifier paradigm of VCs isn't enough for cross-border trade, Floor 5 - 505, –
Accessibility Guidelines WG: WCAG Backlog TF, Floor 4 - 406, –
Accessible Rich Internet Applications WG, Accessible Platform Architectures WG joint meeting, Floor 4 - 403, –
AI Driven Web Standards Specification, Floor 3 - 303, –
Autofill for dynamically changing forms, Floor 4 - 403, –
Cascading Style Sheets (CSS) WG, Floor 5 - 502, –
Chairs breakfast, Portopia Hotel, Nunobiki, B1F, –
Chinese Web IG, Floor 3 - 306, –
Cookies, Floor 4 - 401, –
Devices & Sensors WG, Web Applications WG Joint meeting, Floor 5 - 503, –
Devices & Sensors WG, Floor 5 - 504, –
Documentation CG, Floor 3 - 306, –
Federated Identity WG, Floor 4 - 401, –
Media & Entertainment IG, Timed Text WG, Accessible Platform Architectures WG joint meeting, Floor 4 - 403, –
Media WG, Web Real-Time Communications WG joint meeting, Floor 5 - 503, –
Navigating the Future, Floor 4 - 405, –
Private Advertising Technology WG, Floor 5 - 504, –
PWA Widgets, Floor 4 - 404, –
State of Web Monetization, Floor 5 - 504, –
Sustainable Web IG, Floor 3 - 304, –
Sustainable Web IG, Accessibility Guidelines WG joint meeting, Floor 4 - 404, –
Sustainable Web IG, Web Performance WG joint meeting, Floor 4 - 404, –
W3C Global Chapters & Evangelists Meeting, Floor 3 - 304, –
Web Authentication WG, Floor 4 - 401, –
Web Editing WG, Floor 3 - 305, –
Web of Things WG, Web of Things IG joint meeting, Floor 3 - 302, –
Web Payment Security IG, Floor 4 - 405, –
Web Payment Security IG, Anti-Fraud CG Joint Meeting, Floor 4 - 405, –
Web Performance WG, Floor 5 - 505, –
Web Platform Incubator CG, Floor 4 - 402, –
Web Real-Time Communications WG, Floor 4 - 404, –
WebExtensions CG, Floor 3 - 303, –
WebTransport WG, Floor 4 - 404, –
WHATWG, Floor 5 - 501, –
Why the issuer-holder-verifier paradigm of VCs isn't enough for cross-border trade, Floor 5 - 505, –
Breakout sessions
Floor 3 - 303
Floor 4 - 401
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 5 - 504
Floor 5 - 505
AI Driven Web Standards Specification, Floor 3 - 303, –
Autofill for dynamically changing forms, Floor 4 - 403, –
Cookies, Floor 4 - 401, –
Navigating the Future, Floor 4 - 405, –
PWA Widgets, Floor 4 - 404, –
State of Web Monetization, Floor 5 - 504, –
Why the issuer-holder-verifier paradigm of VCs isn't enough for cross-border trade, Floor 5 - 505, –
AI Driven Web Standards Specification, Floor 3 - 303, –
Autofill for dynamically changing forms, Floor 4 - 403, –
Cookies, Floor 4 - 401, –
Navigating the Future, Floor 4 - 405, –
PWA Widgets, Floor 4 - 404, –
State of Web Monetization, Floor 5 - 504, –
Why the issuer-holder-verifier paradigm of VCs isn't enough for cross-border trade, Floor 5 - 505, –
Legend: group meeting, joint meeting, breakout, other event.
TPAC 2025
Friday 14 November
TPAC 2025Friday 14 November
Registration opens at , Kobe International Conference Center, 3F
Group meetings will be held from to
Breaks (drinks and snacks) will be available from to and from to - Kobe International Convention Center, Reception Hall, 3F, 4F, 5F
Lunch will be available from to - Portopia Hotel, South wing, Ohwada 2/3, 1F
Group meetings
Floor 3 - 302
Floor 3 - 303
Floor 3 - 304
Floor 3 - 305
Floor 3 - 306
Floor 4 - 401
Floor 4 - 403
Floor 4 - 404
Floor 4 - 405
Floor 5 - 502
Floor 5 - 503
Floor 5 - 504
Accessibility Guidelines WG, Accessible Platform Architectures WG joint meeting, Floor 4 - 403, –
Accessible Rich Internet Applications WG, Accessibility Guidelines WG Joint Meeting, Floor 4 - 403, –
Advisory Board, Floor 4 - 403, –
AI KR (Artificial Intelligence Knowledge Representation) CG, Floor 3 - 305, –
Audio CG, Floor 3 - 305, –
Blockchain2 CG, Floor 3 - 304, –
Cascading Style Sheets (CSS) WG, Floor 5 - 502, –
Devices & Sensors WG, Floor 5 - 504, –
Exploration IG, Floor 3 - 306, –
Federated Identity WG, Floor 4 - 401, –
Media WG, Floor 4 - 405, –
MiniApps Ecosystem CG, MiniApps WG, High-Performance Baseline for Web Apps CG Joint Meeting, Floor 4 - 404, –
Pointer Events WG, Floor 3 - 303, –
Portable Network Graphics (PNG) WG, Floor 3 - 304, –
Privacy WG, Floor 4 - 401, –
Private Advertising Technology CG, Floor 4 - 404, –
Security IG, Floor 5 - 503, –
Social Web Incubator CG, Floor 3 - 306, –
Technical Architecture Group, Floor 3 - 303, –
Text & Data Mining Reservation Protocol CG, Floor 3 - 306, –
Verifiable Credentials WG, Floor 5 - 503, –
Web of Things CG, Floor 3 - 304, –
Web of Things WG, Web of Things IG joint meeting, Floor 3 - 302, –
WebDX CG, Floor 4 - 405, –
WebView CG, Floor 4 - 404, –
WHATWG, Internationalization WG, Accessible Platform Architectures WG joint meeting, Floor 5 - 503, –
Accessibility Guidelines WG, Accessible Platform Architectures WG joint meeting, Floor 4 - 403, –
Accessible Rich Internet Applications WG, Accessibility Guidelines WG Joint Meeting, Floor 4 - 403, –
Advisory Board, Floor 4 - 403, –
AI KR (Artificial Intelligence Knowledge Representation) CG, Floor 3 - 305, –
Audio CG, Floor 3 - 305, –
Blockchain2 CG, Floor 3 - 304, –
Cascading Style Sheets (CSS) WG, Floor 5 - 502, –
Devices & Sensors WG, Floor 5 - 504, –
Exploration IG, Floor 3 - 306, –
Federated Identity WG, Floor 4 - 401, –
Media WG, Floor 4 - 405, –
MiniApps Ecosystem CG, MiniApps WG, High-Performance Baseline for Web Apps CG Joint Meeting, Floor 4 - 404, –
Pointer Events WG, Floor 3 - 303, –
Portable Network Graphics (PNG) WG, Floor 3 - 304, –
Privacy WG, Floor 4 - 401, –
Private Advertising Technology CG, Floor 4 - 404, –
Security IG, Floor 5 - 503, –
Social Web Incubator CG, Floor 3 - 306, –
Technical Architecture Group, Floor 3 - 303, –
Text & Data Mining Reservation Protocol CG, Floor 3 - 306, –
Verifiable Credentials WG, Floor 5 - 503, –
Web of Things CG, Floor 3 - 304, –
Web of Things WG, Web of Things IG joint meeting, Floor 3 - 302, –
WebDX CG, Floor 4 - 405, –
WebView CG, Floor 4 - 404, –
WHATWG, Internationalization WG, Accessible Platform Architectures WG joint meeting, Floor 5 - 503, –
Legend: group meeting, joint meeting, breakout, other event.
Floor maps
