Supreme Companion of OR Tambo in gold, for heads of state and, in special cases, heads of government (SCOT) Grand Companion of OR Tambo in silver, for heads of government, ministers of state, supreme court judges, presidents of legislatures, secretaries of state, ambassadors, commanders-in-chief (GCOT) Companion of OR Tambo in bronze, for legislators, envoys, senior military officers (COT)