I did the OPS-DIR review for this document. OPS-DIR review means that I/we look specifically for potential operational and network manegement aspects. Summary: document is ready for publication. I do not see any concerns related to operational or nm aspects. The document could possibly (but that is not a requirement) make such a statement that it indeed does not have any operational (network operations) or nm considerations. I see one possible nit/typo: I see on page 8: 4.2.2. Ethiopic 13th Month Consider the following set of iCalendar properties: DTSTART;VALUE=DATE:201300906 Is that date spec correct? or should it be (9 Sept 2013?): DTSTART;VALUE=DATE:20130906 Bert Wijnen p.s. I am on vacation from feb 12 - 19 inclusive and will probably not see any email on this thread during that time.