# XHTML namespace

The namespace name `http://www.w3.org/1999/xhtml` is intended for use in various specifications such as:

Recommendations:

- XHTML™ 1.0: The Extensible HyperText Markup Language
- XHTML Modularization
- XHTML 1.1
- XHTML Basic
- XHTML Print
- XHTML+RDFa

Working drafts:

- HTML 5: A vocabulary and associated APIs for HTML and XHTML

The charters of the following W3C Working Groups include work on HTML that may impact this namespace:

- Semantic Web Deployment Working Group, chartered July 2006 to work on RDFa
- WAI Protocols and Formats Working Group (PFWG), chartered Dec 2006 to work on Accessibility of Dynamic Web Content
- HTML Working Group, chartered March 2007

For more information about XML namespaces, please refer to Namespaces in XML.