I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG.  These comments were written with the intent of improving the operational aspects of the  IETF drafts. Comments that are not addressed in last call may be included in AD reviews during the IESG review.  Document editors and WG chairs should treat these comments   just like any other last call comments Status: Ready   Details: This document defines a new IANA registry for security labels formats specifications, the initial entries in the registry and the associated policies. The document seems to be useful and is clearly written. No new protocol or protocol extensions are defined. There seem to be no manageability or operational considerations related to the new registry, so the review defined in RFC 5706 does not apply.   Regards,   Dan