BTW, there's no mention of it so far in the anime but, while the Kaishi is the main National exam, it's not the last. The final exam is the "denshi" exam which is an oral exam and done in the presence of the Emperor. I need to add a bit more to the translation notes on the exams. Specifically about this breakdown and that the Kaishi is administered by the Department of Protocol while the Denshi is administered by the Department of Civil Affairs. The Shinshi Ceremony likewise is not the final ceremony. At this stage, they still have the Department of Civil Affairs Ceremony to go through which will determine where they will be assigned. Until that's done, they can't work as officials of the court.
Now to reply to emails and stuffs... >_<;;