The original concept of this award was derived from Executive Order 008 made by former Prime Minister Thatcher in December of 2019.
"The Office of the Prime Minister may appoint residents, citizens, foreign envoys, and ambassadors who have provided leadership and extensive service to the Union to the Order of Service. The Order of Service shall consist of the [First] Class Order of Service, the Second Class Order of Service, and the Third Class Order of Service."
The First Class Medal of Service is still awarded in such a manner but primarily to Citizens of the Union.