HMCS Montcalm personnel provide on-going augmentation to Royal Canadian Navy operations and exercises on ships and at shore establishments on a full- and part-time basis.
Domestically, HMCS Montcalm contributes assets in the form of personnel and equipment to aid to the civil power operations. In the past, these have included the 1995 G7 summit in Halifax, Nova Scotia, the 1997 Red River flood, the 1998 ice storm, the 1998 crash of Swissair Flight 111, the 2010 Winter Olympics in Vancouver, British Columbia, and the 2011 floods on the Richelieu River in Quebec and throughout Manitoba.
Throughout the Cold War, HMCS Montcalm provided hundreds of trained augmentees in support of naval and joint operations, as well as to the Korean War and the First Gulf War. The unit also provided personnel to the Afghanistan war and subsequent training mission, and to numerous United Nations peacekeeping missions and NATO operations.
The following officers were commanding officer of HMCS Montcalm: