IANA Review states

State Description Next states
IANA - Review Needed Document has not yet been reviewed by IANA.
    IANA OK - Actions Needed Document requires IANA actions, and the IANA Considerations section indicates the details of the actions correctly.
      IANA OK - No Actions Needed Document requires no IANA action, and the IANA Considerations section indicates this correctly.
        IANA - Not OK IANA has issues with the text of the IANA Considerations section of the document.
          Version Changed - Review Needed Document revision has changed after review by IANA.