A diplomatic authorization is a document required from foreign diplomats entering Arstotzka. It is used by all member states of the Seven Member Forum, an organization within the Council of Nations (As its distinct "7" is found on the back of the diplomatic authorization page).
Diplomatic authorizations are first seen on day 8. Holders of diplomatic authorization are not required to have an ID supplement, entry permit, or access permit. Holders of diplomatic authorization, however, are required to have a certificate of vaccination once those are instituted on day 26. They also need a passport issued in the same country as their Diplomatic Authorization.