The W3C Internationalization Activity has the goal of proposing and coordinating any techniques, conventions, guidelines and activities within the W3C and together with other organizations that allow and make it easy to use W3C technology worldwide, with different languages, scripts, and cultures.
The Activity comprises three Working Groups: Core, GEO (Guidelines, Education & Outreach), and ITS (Internationalization Tag Set). There is also an Internationalization Interest Group.