PROVISIONAL RANK OR RATING

a rank or rating for which one has not fully passed the requirements is called provisional rank or rating and may be worn if specifically assigned but only on the left arm, shoulder or sleeve and without the star or division symbol. One therefore can be given a rank before he has earned it and can then earn it and wear the star or division or department symbol, and in command ranks (leading to command) can wear it as a rank on both sleeves or shoulders or as a rating on the right arm. A provisional rank is also permanent in that it cannot be withdrawn except by a court martial. (FO 236)