The CVSM is granted to persons of any rank in the Naval, Military or Air
Forces of Canada who voluntarily served on Active Service and honourably
completed eighteen months total voluntary service from 3 September
1939 to 1 March 1947. On 6 June 2003, eligibility to the CVSM was extended
to members and reserve constables of the Royal Canadian Mounted Police
who voluntarily served during the Second World War. A silver bar (often
called a clasp), a maple leaf at its centre, was awarded for 60 days service
outside Canada. A silver maple leaf is worn on the ribbon in undress.