Quartermaster sergeant instructor (QMSI) is a warrant officer appointment in the armies of the United Kingdom and Canada.
Quartermaster sergeant instructor is an appointment held by warrant officers class 2 in the British Army's Small Arms School Corps and by some in the Royal Engineers and Royal Army Physical Training Corps.[1]
In the Canadian Army, QMSI is an appointment held by the senior master warrant officer,[2] within each battalion of the Princess Patricia's Canadian Light Infantry.
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