Dave,
I couldn't help seeing in your email:
The DMARC specification is not 'an IETF document'. The current plan is to publish it as an RFC, through the 'Independent' stream, which also is /not/ an IETF activity.
when compared to the following at dmarc.org (on the front page):
"DMARC policies are published in the public Domain Name System (DNS), and available to everyone. It is the goal of DMARC.org to submit the draft specification to the IETF so that it may begin the process of becoming an official Internet Standard RFC - available to everyone for reference, implementation, and improvement."