In principle, only sovereign states can become COFR ambassadorial members and have to go through an application process that can either deem them a full or ambassadorial member. The other members of the COFR vote on the intial application for ambassadorial member, while the Executive Department can promote it to full membership.
Posillipo became the first ambassadorial member on November 4, 2010, after the executive department turned down the option of making it a full member. Platte Republic became the second ambassadorial member on November 28, 2010. Posillipo later became a full member on December 8, 2010.
The current ambassadorial member states are listed below with their official designations currently used by the COFR and their dates of admission.
|Member state||Date of admission|
|Federal Constitutional Republic of the Platte||28 November 2010|
|Members of the COFR|