Summary: This draft is almost ready for publication as an Informational 
RFC but I have an issue that you may consider fixing.

Minor
=====

* The introduction section of this draft reads like an advertisement and 
I feel that it is not appropriate for an RFC to contain such text.

e.g. "NENA serves as a link in the delivery of emergency services. 9-1-1 
has, throughout its evolution, become recognized as an asset of the North 
American public."

While this might be a fact (I am pretty sure of it), this has got nothing 
to do with why the URN is being registered.

I suggest rewording the whole section 1 to the following.

"The National Emergency Number Association (NENA) is currently in the 
process of setting standards, processes and procedures for the use of an 
IP-based Emergency Services IP Network (ESInet) for all public safety entities 
in North America. Some of the solutions being developed by NENA require 
XML namespaces that are managed so that they are unique and persistent. 
To assure that the uniqueness is absolute, the registration of a specific 
Uniform Resource Name (URN) [RFC2141] Namespace ID (NID) for use by 
NENA is required. This document defines and registers such a namespace."

I leave it up to your (the author and the shepherd) discretion if you 
want to incorporate my comments.