The IESG has approved the following document: - 'Registry Specification for Mandatory Access Control (MAC) Security Label Formats' (draft-ietf-nfsv4-lfs-registry-06.txt) as Proposed Standard This document is the product of the Network File System Version 4 Working Group. The IESG contact persons are Spencer Dawkins and Martin Stiemerling. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-nfsv4-lfs-registry/ Technical Summary This Internet-Draft outlines the high-level framework necessary for the integration of flexible Mandatory Access Control (MAC) functionality into NFSv4. It allocates initial identifiers for the existing different label formats. Working Group Summary After publishing the requirements for Labeled NFS (as RFC 7204) and preparing for the upcoming minor version (NFSv4.2) with Labeled NFS support, there has been a broad consensus to support a registry of Label Format Specifiers. Document Quality The initial assignments captured in this Internet Draft are built from a long history of operating systems security structure and use. This document captures the best method through years of implementation in other file system contexts along with the implementation in SELinux of an NFS feature set much like what is captured in the requirements. The content of this document has received quality feedback and review throughout its life. Personnel Spencer Shepler (NFSv4 WG co-chair) is the document shepherd Martin Stiemerling is the Responsible Area Director.