http://tools.ietf.org/html/draft-rosen-urn-nena-00
is a draft that requests a NID assignment for NENA, the National
Emergency Number Association. The draft references a NENA standard
which defines the operation of the NENA Registry System, modeled on the
IANA registry function. That document is in a review process, and not
yet publically available. I will be happy to provide a copy of the
draft NENA document to anyone who wishes to look at it. The document is
cribbed (with permission) from RFC5226.
Your comments would be appreciated.
Brian