This value reports the administrative permission level, read-only or read-write, that a specific admin account holds on a specific tag, as identified by the row's index. Management tools read this to determine whether a delegated administrator can merely view a tag's or folder's contents, or also modify what objects are tagged into it. For example, a row for a given admin account and the 'Production-Volumes' tag reading read-write(2) means that admin can add or remove volumes from that folder, not just view its contents.