The practice originated in the British Army where the initials psc appeared in the service lists denoting that the officer had attended the Staff College, Camberley.
[2] Initials psc is used by officers who attended the Defence Services Staff College, Wellington.
Officers graduated from the Malaysian Armed Forces Staff College, Kuala Lumpur use the initials psc.
Officers graduated from the New Zealand Defence Force Advanced Command and Staff Course (Joint) use the post-nominals psc(j).
Such officers are eligible to wear the passed staff college (psc) badge.