The location of the status codes, either as the first or last character, allows the city of assignment to be easily identified because representatives of certain countries are limited to travel in a certain radius from their base. The status codes used until 2007 were "C" for Foreign Consul; "D" for Diplomat; "S" for Non-Diplomatic Staff; and "A" for the OAS. Status codes used for U.N. personnel until 2007 were "A" for the U.N. Secretariat; "D" for U.N. missions and diplomatic personnel; and "S" for U.N. Staff. The rights of the driver and car under diplomatic immunity are defined by this status code.
