The new version has been published by Institute of Legal Information Theory and Techniques of the Italian National Research Council (ITTIG/CNR); Italy, National Centre for ICT in Public Administration (CNIPA) [now DigitPA]; Brazil, Federal Senate, IT Department (PRODASEN); and the Legal Information Institute at Cornell Law School (LII).
According to the new version:
The purpose of the “lex” namespace is to assign an unequivocal identifier, in standard format, to documents that are sources of law. To the extent of this namespace, “sources of law” include any legal document within the domain of legislation, case law and administrative acts or regulations; moreover potential “sources of law” (acts under the process of law formation, as bills) are included as well. Therefore “legal doctrine” is explicitly not covered.
The authors have also developed a URN schema handler which can be used in conjunction with URN:LEX.