Two-letter or three-letter language codes
Since the publication of the new IANA Language Subtag Registry as the place to find language subtags, rather than the ISO code lists, this question is no longer relevant.
The article was almost completely rewritten to explain this.
The Portuguese translation has been removed, since the text is now so radically different.
Questions or comments? ishida@w3.org
Copyright © 1997-2010 W3C® (MIT, ERCIM, Keio, Beihang), All Rights Reserved. W3C liability, trademark, document use and software licensing rules apply. Your interactions with this site are in accordance with our public and Member privacy statements.