W3C

Language Tags and Locale Identifiers for the World Wide Web Draft Published

The Internationalization Working Group has published a Working Draft of Language Tags and Locale Identifiers for the World Wide Web. This document describes the best practices for identifying or selecting the language of content as well as the the locale preferences used to process or display data values and other information on the Web. It describes how document formats, specifications, and implementations should handle language tags, as well as extensions to language tags that describe the cultural or linguistic preferences referred to in internationalization as a “locale”. Learn more about the Internationalization Activity.