In the Canadian Army, a regiment is placed on the Supplementary Order of Battle when the need for the regiment's existence is no longer relevant. When placed on the Supplementary Order of Battle, a regiment is considered "virtually disbanded", and is re-formed only when the Department of National Defence deems the unit is required again. The Supplementary Order of Battle was instituted as an alternative to outright disbandment during the army rationalizations of the 1960s. If a regiment is re-manned and moved from the Supplementary Order of Battle, it takes its old place in the order of precedence and its colours, traditions and battle honours remain as if there had been no interruption of service.